I am still very early in this whole process, and there is still a lot of self doubt, so I am reading a lot of literature on "Am I trans" and dysphoria.
One concept that people often like to propose in these ressources is the button that makes you the opposite gender, and, crucially, also makes everyone else believe that you have been that way forever.
I don't really like this, because my time as a boy/man is part of who I am. I would not be me without it, and despite all of the problems I had and have due to my gender, it is still part of who I am. I fought through all of this and worked to find out who I want to be by myself. I wouldn't wanna be cis, and I also don't want to cease being the me born out of this struggle.
There is a lot of variations of this question. One that helped me was about button that changes your body in the way you want it to be but doesn't make everyone forgot your past instead it makes them accept your new presence. I would press the button in that case and this answer made me realise that i am not afraid of changes in my body and overall appearance, i am just afraid to be rejected. So my point is that those questions might not fit for everyone and that's absolutely valid but it might help someone in exploration of their identity.