Sex questions

Is anyone here like afraid to have sex? Cuz I am. It’s not cuz I’m scared to be naked in front of the person I’m gonna be doing it with cuz I love my body but I guess it’s cuz idk what to do. I’ve read online that guys don’t like when you just lay there while they do there thing. Like what am I supposed to do? Lol dance? Haha but on a serious note idk what makes me afraid to have sex with someone. I’m pretty sure if the time comes and I’m with the person I love most I won’t be afraid but at the same time it’s terrifying to think about 😩