How committed are you to your present girlfriend? It sounds like she's done nothing wrong but you are seriously considering dumping her for the simple fact that she's not, and can never be, your old girlfriend. I strongly suspect that you need to get into some serious counseling. A good counselor can help you with developing a sense of perspective with respect to your present and past relationships and, perhaps, a stronger sense of self worth.
<><Peace
I am not committed to her as I should be (emotionally) so is why I am going to end the relationship.
I value myself greatly (I don't have the big head but I am valuable and have a lot to offer). I am sure talking to someone would help. Is being considered.