No one can tell آپ if آپ are a lesbian. Only آپ can tell. Don't let anyone try to convince آپ otherwise. There are no "gay quizzes" یا tests that can tell for you. I wrote an مضمون about this that may help you:
link I know, it's really hard to tell. I think it's easier for guys to tell if they are gay because they tend to experiement more. But آپ don't need to experiment in order to tell, and I wouldn't reccommend sleeping around.
After آپ find out, آپ may want to keep it to yourself یا come out of the closet to family and friends. But DO NOT do this if your family might kick آپ out (unless آپ have a place to go). آپ might want to get a girlfriend یا just stay single for a while. It's all up to you.
Don't try to change yourself. There are no "gay to straight" programs that work, and there never have been. God made آپ the way He meant to, and He loves آپ no matter what.