Am I Too Selfish?

My need for a sex life is getting in the way of finding a relationship. I guess I would be described as a "size queen". I simply do not enjoy sex with a man who has a small cock. I have dumped or ceased dating more men than I can count because of this.
I know how this came to be. I became sexually active at the age of 16. The boy was 18 and he had a large cock, 8 inches and thick. We dated the remainder of my high school until I went to college in another state. College was not a problem. All you had to do was cruise a few college bars. Obnoxious college boys had no problem announcing loudly they have a big cock trying to score on a late night in a bar.
Now I am in the real world. Work and trying to date. I have turned to the internet and swinger sites to find men with cocks. It is not easy as I have gotten so used to XL cocks. I mean lately 7 inches doesn't even satisfy me. A few months ago I travelled to NYC just to spend the weekend with a black man with 11 inches. Not only did I take it I begged for more! He invited a friend to join us just to give me what I needed.
This is becoming a problem.