Raf,
I've lurked for a bit, but your post requires a response.
I left home at 18 too..well kicked out of it, to be honest. It was terrifying, and watching my mother cry hysterically scarred me even to this day. I had been pretty sheltered so I had friends out of the org, and was utterly alone.
I even tried to go back, but once I knew the truth, I could no longer pretend, so eventually I broke free.
12 years (and some great therapy) later, I am happy and finally at peace.
My cousin was not as lucky. He was gay, and left when he was 18. He spent his adulthood trying to deny who he was, trying to "ungay" himself so he could win his family back. I'm sad to say I shunned him until I learned the truth about the truth.
He never found happiness or a sense of contentment with who he was because he desperately wanted to win his family back. The only time my family was really supportive was the few days before his death, as they streamed in and out of his hospital room to make their peace....after they had spent the the last decade treating him as if he was already dead.
At his funeral, I cried not only because I had lost him, but because he never saw how beautiful and amazing he was. He died without ever really being true to himself. And this man, who had the purest soul of any person I had ever known, had died because our family had broken his heart.
Please, I'm begging you, don't do the same. Please be true to yourself, no matter how hard it is. I know it's terrifying, but the alternative of spending your life never truly living is even more terrifying.
Please, give yourself more time. Please. I'm begging you.