I made a post earlier about this, and got two replies, both which had advice which I followed. Pretty much been trying to think less about it and just relaxing during sex, and I think that's worked a little bit, but still sometimes I get soft during sex, and its driving me and my girlfriend crazy. I'm 19 years old, what should I do? What are some things that might make me have stronger and longer erections? This is really bothering me, and yeah, next time I'm at the doctors I will ask.