Anxiety And Guilt And Relationship

I am currently going through a very bad patch....

Just before christmas I cheated on my girlfriend in a club when I was very drunk. It was around the time when I new that I was not myself, and other people had begun to notice that I was not myself for a month or so before this happened.

Anyways, in the club, I pulled and touched the girl down there, but did not finger her. I was paranoid that I got her pregnant as I had masturbated before I went out in the evening.

I told my girlfrriend, that I love very much, that I pulled another girl, and she has forgiven me and also knows that I have not been my usual self and this is comletely out of my character.

I am now in a great state of guilt and cannot forgive myself for ever hurting my girlfriend. I no that everytime I look at her I think of what I have done to her etc. Im afraid I have battered our relationship, even though I did not want to, to a point that is unrepairable.

I believe I have a level of anxietym not only with this event but with other events, and I also suffer from a low level of ocd.

Can someone please give me some advice as to what I can do to overcome my guilt and try and forgive myself of this event so I am able to continue with my life and my relationship.

Thanks,