It doesn't go away, ever. If it's been there for long enough it'll be there forever.
Transition is not a cure, and it won't fix your problems. But for somebody with dysphoria it's definitely an option to consider, as it does help a lot of people move closer to that end goal of..if nothing else not wanting to put a bullet in your brain when you wake up. But for others it doesn't work so well, and it turns out to be a nail in the coffin. That's not extremely common but it does happen often enough.
But here's the thing you need to remember...there's risk on everything in life. So many things we don't even think about. Getting in the car is a giant statistical risk but each and everyone of us do it everyday. Why? Because we have somewhere we need to be and the car is the best way of taking us where we wanna go. For a person with dysphoria..transitions a lot like that.
Whats scariest early on is that it's an unfamiliar risk, and that's what scares a lot of people off...a lot of people who end up shooting themselves in the ass because they end up doing it 20 or however many years later. That's such a common story.
All you can really do honestly is look inside yourself and be brutally honest and figure out exactly what you want...do you want your headstone to read "Jane Doe, wife, mother, daughter" can you handle being a woman to the eyes of every one you meet for the rest if your life?
Both ways have obstacles. Its kind of a pick your poison deal where you figure out which personal hell is most livable for you..but that's life in general, I'm starting to realize. Don't listen to the propaganda, don't listen to the narratives, don't even listen to your own brain...listen to your heart...they have the worst sense of direction but somehow manage to be the best at guiding us 'home'

Good luck, babe!