How to be more exciting in the bedroom

I’m 21 and I’m in my first ever relationship this is the first guy I’ve ever had sex with he on the other hand has had many sexual partners. I feel very vanilla in the bedroom we just have sex he went down on me once. I don’t know how to foreplay or get things exciting. My boyfriend has a high sex drive and I feel like I’m too vanilla for him I do what to spice things up and kinda surprise him next time but I truly need some advise I’m quite clueless I really want a good sex life because right now both me and my partner aren’t meeting each other’s sexual needs.

As I’m new to the sex life I’m finding it hard to figure out what turns me on and I haven’t reached a climax with my boyfriend (been four months now) he is unaware of this as yes I’ve faked it which is awful I hate lying to him and saying I enjoyed it when I didn’t.

He really wants me to give him head but he has extremely bad psoriasis down there I know he can’t help it and I’m not judging him for that but it’s really turning me off going down on him I’ve never told him this as I don’t want to make him any more self conscious about it

Girls I just need some good advice