I have read comments from many people on this forum and I think all of them agree that if you are transgender the yearning to become your true self will never go away. You can hide it for a while, but eventually the feelings come back stronger than ever.
The moment I realized I was transgender was an epiphany. It hit me suddenly, and I knew at that moment I needed to transition. I was not ashamed or embarrassed, but I was frightened about what my future could hold. I feared the worst, that I could lose all of my friends and that my family would reject me. Telling my wife was the hardest part of all, and it took nearly a year before she accepted it. There were times when I was certain that she was going to leave, but I was patient. Within these last few weeks I think she has finally realized how much better our life together will be, and for the first time in years she is truly happy.
Research your company to see if they have policies concerning transgender employees. My company had extensive documentation that outlined everything, and it was very favorable towards the person transitioning. I transitioned about two months ago and have had no work issues at all.
Transitioning will turn you life upside down, but it will also most likely make it better in ways that you have not yet imagined. The anger and rage that I felt for decades are gone, I now have access to a more complete range of emotions, and physical contact with someone you love is much more sensual and rewarding.
I started my journey using informed consent, and it only took a few months for me to realize that I had indeed found my path to peace. Eventually I did seek out a therapist because I knew I would need to have a good relationship with one if I decided to get GCS, plus I hoped the therapist would be able to help my wife understand.
Don't wait too long to let your partner know what is going on, they probably already know something is happening. If they are going to leave it is probably better to get it over with, if they are going to stay then hopefully you have found a partner you can count on for the rest of your life. Although you can do this alone it is difficult, having someone you can confide in makes a big difference. Susan's Place is full of people you can talk to, ask questions, and who will provide love and support. You will never truly be alone.
By they way, all of the things that I feared would happen never occurred. My family still loves and accepts me, all of my friends are still my friends, and my wife is still at my side.
I wish you the best of luck in your journey.