i feel like im trapped

ive recently come to terms with being trans and have a long-term gf and i wanna be with her and i wanna live tg and i wanna further my transition but my family doesnt know, my dad knows but he ignores and hopes that ill be strong and choose the 'right' thing. he makes so many plans of how we're all gonna move together and do this and that but i know that ill have to wait 2+ yrs to finish that whole process and i just wanna save money and leave because im 98% sure that when I'm fully out, nobody will accept the way i am except my younger sister. im sorry this is gonna go off topic but all of these feelings and being stuck between different ideas of life just has me dissociating hard and losing my sense of self and losing touch with reality, its like its hard to imagine my life, fully transitioned and living comfortably with my gf but also very hard to imagine my life hiding amd never being the way i wamt to be, it almoet feels like im doomed either way. idrk what else to and im tired asf writing this.