"The only way I can truly be myself is to transition"
What is "Transition"? In my case at the tender age of 50 something and dealing with my gender issues since childhood, "Transition" started with the first step being finding a way a way to bring together what I saw as two very disparate aspects of myself in order to become one whole, healthy, and happy person. One side of me was a life spent feeling ashamed, guilty, undeserving, a faker; yet had plenty of accomplishments to be proud of, a life that is a large part of who I see myself as as a person, and provided status, wealth, and even some happiness. The other representing my true joy, happiness, and at various times and to various degrees my passion.
To me transition is a process of personal growth and discovery. Being transgender also means the world is far from binary Male-Female. There are plenty of colors in the spectrum that resides between those two "ideal" extremes. Which also implies a diversity of coping techniques waiting to be discovered. This process I undertook is enabling me to feel more complete, finally happy to be in my own skin, and even some joy. After 5 years I still struggle with the question of do "I need to go full-time?". I still have to answer no to that. Nor is it practical for me to at this point. Then there is the cost, both personally and professionally. Part of which stems from the fear of the unknowns involved.
Perhaps there is also a middle ground that can work for you too. Unfortunately, being in the UK, even low dose HRT is likely not an option. I found that my TG support group has done wonders in helping me shed the ton of negative emotional baggage like shame and guilt that acquired over the decades. Finally having access and seeing a gender therapist is also helping me. This is on top of the ton of other little things I used over the years to get by by expressing and seeing my true self