Face it, your wife, yourself, both think you are trans. She had it mostly confirmed when you dropped the T-Bomb on her. You had it mostly confirmed when you knew you needed to at least hint (if not actually) dropping the T-Bomb.
The only Open Question is "Now What?"
Her world was torn inside out in an instant. Yours, slowly like picking at a scab. Always itching, always itching, feels better when you do it. Feels worse when the deed is done. You came out to yourself about "Yes, I am TG somewhere on the spectrum". You came out to her, whose likely only real knowledge base till then was Jerry Springer.
She has a thousand questions. Many the same as the ones you've been asking yourself. I'd guess that at this point in time you have no clear vision, no "I absolutely need to do this" path forward. Which is perfectly OK.
What is not the best course is not telling her so. Worse, is not telling her you feel absolutely that you Need to transition. The sooner the better. Far from optimum is not keeping the line of communication open.
I know how difficult that is. I was, somewhat still am, a recluse. THE hardest part of coming out to my wife, dropping the T-Bomb, was also knowing the ONLY way our marriage stood ANY chance of surviving in the near term was rapidly becoming a LOT more forthcoming and having those always way too difficult open and honest discussions.
Early on in the process my wife posed a hypothetical question to me during th runup to one of the super mega million dollar lotteries. "What if...?" Would I instantly chuck it all and go for the gold ring? Or....
While I am a bit more sure today then I was 6 years ago, the facts are still the same. I haven't (much) of a clue what it's like to really live as a woman. Until I really try it out I am not jumping into the deep end of the pool. We both see more and more as I grow and learn more what it is like to blossom, to be the real me, what path I am likely to choose. Still....
Communication and Actions. There are no Do-Overs. You cannot un-tell your wife about "maybe" being TG. That ship sailed. It is OK NOT to know much, not to know for sure what you feel, what you need. It's OK that those things change. She does need to know, as your life partner, BFF, and the person you love and should trust more then anyone else in the world, what is rattling around in your head keeping you awake most nights