I don't even know anymore?

I don't even know my own sexual orientation anymore. I've never been in a relationship so I can't work it out that way. I don't know if I'm lesbian, bi or straight. Is there anyway I can tell? I don't want to talk to my family, due to the fact I don't trust them, I can't talk to my best friend because I never speak to her other than online due to her living too far away, and I can't talk to my other best friend, because he's a he and I am too scared.

For the most part, I say relax (although that sounds impossible). You'll know when you know. It'll become very clear at some point, so there's no need to force it. Don't worry about the label. Just be yourself and notice what you're drawn to.

You can chat with a volunteer counselor at www.crisischat.org. It's anonymous and free. They'll listen as much as you want, and help you locate resources in your area if you need them.

hi again snivy! :)
I would say think about it like this: you have gender, that is who you are 'inside', and you have orientation, that's who you feel attracted to. So people can call several different combinations of gender/orientations the same thing, like straight or bi or lesbian. Like me for example (I'm a girl), in gender I feel like I'm a guy, in orientation, I'm attracted to guys. So people would say I'm a straight girl, but it's not the same thing as being a girl that's girl-gender and attracted to guys. So don't worry about that classification of being straight/bi/lesbian, it's too confusing and it doesn't say much about you.
And if you feel like you really don't know right now, just don't worry about it. It will become clear to you at some point.