I started having gay thoughts when I was like 3/4 but I didn't know what it meant. I noticed my gayness at like 8/9. Became fully aware at like 10, but I kept telling myself it was a phase. I only accepted it fairly recently at the age of 15 and I've never been more at peace.
I'm starting to come out to people and it's fantastic.
Oh plus, when I was young (too young to know what I was doing), I used to do sexual things to my best friend while he was asleep. I think he knew I was doing these things to him, but he never told anyone. I've come to the conclusion that I shouldn't feel guilty because I was young and ignorant.