My husband wants to give me oral sex. How can I stop being so uptight about it?

I've been married 4 months and we've been together 17 months. My husband has been wanting to give me oral since we started becoming imitate 4 months into our relationship but I couldn't and still won't let him. I have no problem giving it to him but just the thought of receiving it makes my skin crawl. I had a very very bad bad experience with my first years ago with oral sex and it has scarred me for life (mentally and literally). My husband knew of this before we were married and said he was fine with it but now that we're married he said that he would like me to try it at least once. I want to but every time he tries to I freak out. Last night, I was waiting for him to come home and I thought this is the night but I couldn't stop thinking about how much I didn't want to do it so I had a few drinks (a few too many) and got really drunk. I woke up this morning and asked him what happened and he said that he won't ask me to do it anymore and I could tell he was really sad. I want to please my husband but I can't get over that "incident." It was my first and last time, but it was honestly the worst experience ever. I think I might need some counseling but I don't know. How can I just get over it?