I recommend seeing a psychiatrist, those are not only transgender issues, but psychological issues.
And to answer your question, past is written, mistakes happen, move forward with the future; learn from it.
You're only harming yourself with the thoughts, no one is going to care about you in life because of those issues (not saying you were searching for it). If you continue, then you're just making a bigger hole in the ground... and like all the optimistic people, they excuse the problems as "Personal Growth! My life is wonderful now! All things solve", yeah... just keep saying that; personal growth can be learn in one second, not 5-10-20-30 years into the future.
Choose your opportunity costs, cause the clock is ticking whether or not you make a choice.