Transition isn’t really about quick changes - hormones work slowly and other interventions (aside from surgeries) also tend to take time to develop and manifest. But there are a few things I’ve experienced which might be illuminating.
Not identifying with your assigned gender is one of the worst feelings I’ve ever suffered. I have never experienced any amount of physical pain which even comes close to the psychic pain. You don’t fit in. You might not even know why. You feel different, but don’t have any words to describe how or why.