I'm a 23-year-old woman and I've never been in a relationship.

One thing that really stresses me out is sex, because I’ve never had it. I do want to experience it, but I’m scared I’ll do something wrong or just not know what I’m doing. I’ve read a lot (including manhwas and other sources), so I get the general idea of what’s supposed to happen — but since I’ve never had any real-life experience, I feel like I don’t have the practical ability or confidence to actually go through with it.
Has anyone else felt this way? How did you deal with it?