You don't need to worry about labeling yourself if it's stressing you out this much. You of course can try to figure it out, but you really don't need to label yourself.
(I'm really sorry if this comes off as insensitive, I'll help more if you need it <3)
Answer: There could be a percent chance that ur lesbian because if you liked girls in a sexual way then you could be lesbian if you don’t really know you could try taking quizzes to see if your lesbian. If you weren’t attracted to boys at all in you life then it can also be a possible chance that ur lesbian. I came out bi a couple days ago and I’m a female but I always denied that I was bi because I didn’t really know my sexuality and I’m still knew to this stuff.