As Krystal says, and I can assure you from my own experience, being a crossdresser and being transgender are entirely separate. You don’t just decide to “do it”, you either are or you aren’t. I’ve always known, from the age of four years old, that I was supposed to be a girl and grew up with that knowledge always in my thoughts.
I used to crossdress, not for any sexual gratification, but because those were the clothes I was supposed to wear. I have now transitioned and live as, and am legally, a woman. There are lots of our stories here on the TGH forum that you can read and get a much better feeling of what being a trans woman is all about.
I wish you well as you explore this part of your humanity.
Ms. Lauren M