Help me.

So, I've been dating this guy for 2 weeks now and we recently had sex but I have a big issue i'm a bottom but sometimes I just don't enjoy anal, sometimes I dont want sex at all. Im too worried i'm gonna do something nasty (you know what) and I get really on my mind with that subject. I'm constantly telling my boyfriend to pull it out or he just notices im not comfortable, I know those are like boner killers. Can you guys help me with that? Is there something I can do to enjoy sex more? What is wrong with me?