What To Do??

I don't really know how i found out about my sexuality, but i think i am into girls, and to be honest, i live in a country where this is considered as a sin, so i cannot open up to anyone about my sexualiy, but this is killing me!!! i'm in college now, and i met alot of girls and had feelings for some, but i just can't do anything about it, so i really need help!!