How do I fix fear of performance issues? /u/Ok-Intern-5105 Sex

I’ve been talking to a girl for the first time sexually in my life at 18 and she wants me to come round and assumably have sex, I’m concerned I won’t know what to do or that I’ll freeze up or something, how do I make sure I know what I’m actually doing and that I don’t mess up the first time? Thank you for any advice. I know the question might seem like a commonly answered one but I’d really love some specific advice about how to know what would feel good/right and what’s a sensible place to start for a first time.

I’ve been talking to a girl for the first time sexually in my life at 18 and she wants me to come round and assumably have sex, I’m concerned I won’t know what to do or that I’ll freeze up or something, how do I make sure I know what I’m actually doing and that I don’t mess up the first time? Thank you for any advice. I know the question might seem like a commonly answered one but I’d really love some specific advice about how to know what would feel good/right and what’s a sensible place to start for a first time.