Im 18 years old and ive been masterbating for quite a while now. When i was about 16 the girl i loved for about 2 years stripped for me and teased me and she let me masterbate to her. this went on for about 5 months and then she suddenly stopped when she lost her virginity to her boyfriend. now i have extreme trouble cumming. i have only cummed about 10 times since then which was about a year and a half ago. and the ten times i have cummed were because she wore a bathing suit that day or had a a nice ass in the pants she wore or something along those lines. what the hell should i do...?