Sex and Anxiety

I am 25. I have had plenty of sex. When I was younger I was sexually abused. At this point in life I want to just have fun and enjoy it, but it still makes me so nervous and anxious.

I don't know how to get over it? It does put a strain on relationships because certain positions or "dirty talk" kind of makes me panic. On the outside, I am fine and not terrible at sex haha but on the inside I am crumbling...