Rapid Transformational Therapy

WHAT IS RTT?

Rapid Transformational Therapy® is a multi-award-winning, revolutionary therapy created by Marisa Peer. It embraces many of the positive aspects of hypnosis and hypnotherapy, neuroplasticity, NLP (Neuro-Linguistic Processing), CBT, psychotherapy and has the added, and crucial, steps of also directly accessing and removing the blocks that hold you back.

Uncovering the Root Cause

What it is not

It is not a Talk Therapy. You don’t need to come see me once a week for years to come, just so we could get to know each other and so that you can “open up” to me. Clients come to me in pain, and I help them there and then, at our first session. Some of the more complicated conditions require up to 3 sessions. That’s why this therapy is called Rapid. It is Transformational, because we literally re-wire your brain with new positive, helpful beliefs.

About the Method

Diamond Transformation™️ is the signature method I use to help individuals uncover, polish, and fully embody their inner light. It’s a deeply personal and powerful process rooted in Rapid Transformational Therapy (RTT), transformational coaching, and a set of unique tools I’ve created through my lived experience in both the high-stakes world of luxury and the profound realm of personal healing. Through this method, I guide clients to dissolve limiting beliefs, reconnect with their self-worth, and step into lives of authenticity, freedom, and radiance. Just like diamonds, people are shaped under pressure—and through this method, I help them reclaim their brilliance.

I use RTT® to help all kinds of challenges

Depression
Anxiety
Eating disorders
Cancer treatment
Weight loss
Addictions
Relationships issues
PTSD
OCD
Self-harm
Childhood issues

Fears (of flying, claustrophobia, etc)

Phobias
Lack of confidence
Motivation
Procrastination
Self-sabotage
Imposter Syndrome
Performance issues such as exams, interviews, public speaking, presenting, sports, sales

Infertility

Pregnancy related concerns
Pain Management (eg hypnobirthing, anaesthesia, etc)
Physical Health Issues
Allergies and Intolerance
Remaining calm during medical/dental procedures
Surgical Recovery

Reducing Treatment Time

Improving Treatment Effectiveness

Cell Regeneration and Healing
Anti-aging
Stop smoking
Stop drinking/vaping
Stop nail-biting
And many more

What to expect from an RTT® session

Before the session

Free Discovery Call

Where we find out if we are the right fit for each other. You need to feel comfortable with your therapist. And your therapist needs to be comfortable with you. This is when you can ask any questions you may have about the process.

Consultation

We will discuss what you would like to work on and I will be asking you many questions including how you would want your life to look & feel like. This could be described as a therapy session or a conversation with your conscious mind. I will then email you an intake form to be completed at least 48 hours before our session to allow me to best prepare for your Personalised Transformational Recording.

The session

Typically, a session can last between 1.5-2 hours. I will help you achieve a heightened relaxing state, and we will begin uncovering where your presenting problem started and how you acquired it. During the hypnosis, you will be in full control as hypnosis is not about sleeping. It’s a sleep of the nervous system.

We will re-visit (not relieve) some events from your past to uncover some beliefs you formed then. This is very important as not the events so much as the meaning we attached to them that made us form the unhelpful beliefs.

Once we find the events that have affected you, we will Interrupt, Reframe, and Transform them into helpful, empowering beliefs with the help of the unique techniques and tools of the RTT® Therapy. During or after the session I will record a Personalised Transformational Recording for you.

AFTER The session

I will follow up with you on the phone the next day to see how you are. It is very important that you listen to your Personalised Recording for a minimum of 21 days. You can listen to it as often as you like but the more you listen to it and the longer you listen to it, the better results you will have.

One of the rules of the mind is that the mind learns by repetition.

Please remember:

70% of the work is done at the session

30% of the work is done by you listening to your very own Transformation Audio Recording every day for a minimum of 21 days.

I will further check on you after 7 days and one more time after the 21 days have passed. If you require additional support from me, I provide coaching.

Book an Appointment

Rapid Transformational Therapist, Hypnotherapist, Life & Business Coach

MEET JULIA CASTELLI

Julia Castelli is the founder of Diamond Transformation™️—a signature method designed to help individuals uncover, polish, and fully embody their inner light. Drawing from her background in Rapid Transformational Therapy®️ (RTT®️), coaching, and two decades in the high-stakes world of luxury, Julia brings a unique, soul-aligned approach to personal transformation.

Trained under world-renowned therapist Marisa Peer and certified in RTT®️, coaching, and hypnotherapy, Julia integrates deep healing with intuitive insight. Her method goes beyond mindset work—it’s a multidimensional journey that dissolves limiting beliefs, rewires subconscious patterns, and reconnects clients to their self-worth, clarity, and brilliance.

Whether supporting high-achieving women, entrepreneurs, or individuals at a crossroads, Julia uses Diamond Transformation™️ to guide them back to their truth—helping them remove the masks, rewrite old stories, and step into a life of authenticity, radiance, and purpose.

CONTACT ME

What I Want to Leave Behind

In my Left Hand

I was molested as a child. I had some unmet needs. I left home at 13 and never came back to live with my parents. I had depression, an eating disorder. I have struggled with my weight.

I went through an acrimonious divorce. I dealt with narcissists in my life. I was a victim of a cyber crime. I had my home and my car broken into. I had an abortion, a miscarriage. I lost three important family members in a 6 months period. My beloved dog was crushed by a car in front of my eyes.

I lived in 4 countries and every time I had to start from scratch or somewhere near there. I had companies and people stealing clients and business from me.

I have struggled with feeling not enough, with lack of confidence, self-sabotage, imposter syndrome.

Who I am Today

In my Right Hand

Today I am a confident, radiant woman with ease and inner joy at my core. I am also a successful, award-winning entrepreneur, independent, strong & vulnerable woman, single mum of two amazing children. I laugh more than ever, I sleep peacefully at night, and I feel loved, lovable, and enough. More than enough.

And if one day I don’t feel all the above, then I have the tools to help myself.

My personal healing journey led me to this purposeful, fulfilling and deeply rewarding career as a therapist. Today I proudly heal, coach, and transform people into the best versions of themselves.

A hypnotherapist is not as common as some of the other job titles, but my job is just as important.

People experience things they may not feel comfortable expressing to friends or relatives. There's no need to carry baggage from childhood or any other time. Traumatic situations don't have to weigh you down for the rest of your life. My job is to help people overcome the situations that trouble them.

Who I am

I am a Rapid transformational Therapist, Hypnotherapist and Life&Business Coach. I am also an award-winning entrepreneur with 22 years experience. I source luxury items for private clients and I collaborate with luxury brands.

In my other business I am providing services to make my clients shine on the outside. Everything is about the outer beauty.

I found myself searching for deeper meaning and trained as an RTT® Therapist so I could bring also inner beauty to my clients and help them get rid of blockages and limiting beliefs. I now empower my clients by giving them the voice they forgot they had or simply never had.

I am a single mum of two amazing children. I speak English, Italian, Russian, Bulgarian and French. I love tennis, yoga, gardening, reading and writing.

What I Offer

I offer the most efficient therapy in the world- RTT® Therapy.

RTT® is a complete, solution-based approach that has achieved phenomenal success in helping people overcome all kinds of challenges, including physical health issues, infertility, depression, anxiety, fears and phobias, and weight management.

RTT® works by first understanding how you got your issues and then freeing you from them for good. By using RTT® to access the subconscious mind, we can create new neural pathways and replace old limiting beliefs and behaviours with new, empowering ones.

I offer in person or Zoom sessions. My therapy room is in Wimbledon. Other locations are on application.

Why You Need It

Because you are meant to have a happy, fulfilled life where you have a voice and a choice.

If you have tried unsuccessfully to resolve some of your issues and are still looking for answers, then you are in the right place.

Most people try to resolve their challenges by will power which lives in the conscious mind. But the problem was created most likely long time ago, in the childhood. The key to what has happened is in your subconscious mind. Hence the constant battle between your conscious and subconscious. And guess what, the subconscious will always win because it is attached to emotions.

Let me guide you through the process of uncovering what holds you back and transforming you to lead the life you always wanted.

Contact Me

AS SEEN IN

Elevating Luxury, One Masterpiece at a Time.

With a legacy of excellence in high jewelry, bespoke luxury, and UHNW advisory, Julia Castelli curates unparalleled experiences for the world’s most discerning clientele.