Having sex with my gf for the first time

Hi guys,

So I’m a female and I’m bisexual. Ive had boyfriends and I’ve had sex with them and tried lots of different things. Now I’m in my first relationship with a girl and we’re both ready to have sex together but I’m so nervous. I don’t remember being this nervous with guys but I really want to pleasure her and what if I’m not good or she hates it? Any tips or advice?