I am going to wade here for a moment. The problem is that this is something where individual biography plays a significant role. Intensity of feelings about yourself and acting by way of transition to overcome the disconnect between your brain and your body are not necessarily a seamless cause and effect. Biographical events and issues as well as medical biography will invariably impact the progression from those feelings to transition completion. For some of us it is more a matter of surviving to transition and be whole.
So much to say - no inclination to say it here.