Confusion about sexuality. Lesbian?

Hi,

I’m a very excepting person and am open minde. I’ve always supported the LGBT community. I cannot stand others making comments about anyone’s sexuality-it’s something that really gets to me.

Yet I cannot figure out my own sexuality.

I know someone who is a lesbian and I thinks she’s a great person. I like her being around.

My favourite teacher is a lesbian and I’m her favourite student too. This teacher is quite masculine in the way she dresses. Is this a common lesbian trait? (One being masculine and other feminine?)

Random question but do ALL lesbians sleep in the same bed/kiss in public?

If everyone in my family/culture are straight- does that make me straight too?

Figuring out my sexuality is really confusing me! On top of that I’m concerned about Alevel Results day!
I’m 18. And a girl.

Any help/advice would be great!