Hello and welcome

Its up to you but here are a few resources that might help:
https://www.susans.org/forums/index.php/topic,194946.msg1736596.html#msg1736596There are brochures by reputable sources, for example the british NHS, showing being trans has biological connections.
Its explained with pictures. A brochure says explicitly for trans people, their families and health care staff.
If its biological its nobodys fault... and its not likely to be a phase...
you might see a good gender therapist...
the gender therapist to help you along, maybe with easy reversible steps first, to help you find out how they make you feel...
so that you have someone to guide you and help you along, and no rash but appropriate steps are made.... appropriate also in your favour, so that it moves along...
you might ask at plannedparenthood of a lgbt place for counseling...
or look here:
https://www.susans.org/forums/index.php/topic,162888.msg1400316.html#msg1400316many *hugs*