Not comfortable with sex?

This is a really weird topic and some of y’all might think I’m crazy. But basically I’m a 19 year old girl and for some reason I really hate the idea of having sex with someone. I know it’s something that virtually everyone does, but when I think about it I get very uneasy and uncomfortable. I just don’t like the idea of being that close with someone, it just makes me feel icky. I feel like even if I do start having sex it would be really vanilla and boring for the guy (or girl...haven’t totally figured myself out yet). I’m just worried that this will affect my ability to have relationships because I’m not willing to put out completely. Is something wrong with me?? I feel so weird but it seems like everyone my age is having sex with everyone and I just feel like I’m crazy for not feeling the same