I have a small penis. I need advice.

Hi everyone. I need advice because my penis is only 3.7 inches. I'm in college and am too afraid to get into a relationship or even try hooking up because I may be humiliated. I am gay and it is tough watching what seems like the majority of college students hookup and you not being able to have some fun. I really need advice because I think about my size too much and it really brings me down cause size is emphasized in the gay community. I was also thinking about talking to my doctor about this and if there was anything I could do about my size cause I'm super concerned. I'm afraid I'll also never find love because people would reject me for my size.