I think I'm bi, but I'm not sure.

I was struggling with similar issues. I wouldn't trust the online tests though, they are not always right. I found out I was bisexual cause my best friend had kissed me and I liked it. I also found myself attracted to both men and women. It's alright to be confused, and some things you could do is if you have any gay, lesbian, or bisexual friends you could talk to them about it.