Meeting his family

Super nervous about meeting my boyfriends family. He's met my family and now it's my turn. I really want to meet them but I'm scared, what if they don't like me. I don't know what to do. Im screwed if they don't like me. I don't know how they are, what if I fck up one bit that leads to another. I also suck at talking to people, I get all nervous and say stupid shit