I think you need more help than you will find here and I might say, if you do find someone who claims to be able to hypnotize you and erase it from your mind you should run as fast as you can ---- the other way.
Find a good respectable therapist to help you work through this.
Personally I don't understand being jealous or upset about her previous love life. My wife was not a virgin when we met but I was. I never asked her about her previous relationships because I felt it was none of my business. People meet people and break up with them. Why should I feel any girl I dated was not supposed to have dated someone before me? Whatever they did on their dates was none of my business just as what we did is none of anyone elses business.
So if you can't bring yourself to feel that way, you need to see a good therapist to help you.