There is little I can add to what has already been said. But this sentence out of all you wrote is kind of scared me. What is it that you are trying to convince yourself of. I think that is a very important question to ask yourself.As time passes by I think I am convincing my self more and more to take that step;
As to regret? If you regret after transition that you transitioned then you did not do the work you should have done before convincing yourself that you have to take the step. Dangerous stuff that. And very harmful not only to yourself.