I've been having sex for 7-8 years now, and I used to last WAY longer than I do now. I was regularly able to go 20+ minutes with my longest every being about 65 minutes. The average was between 10 and 15. Ever since I started dating this girl (it's been a year now), I am lucky if I make it 5. What happened to my stamina? If I don't have a few drinks before, I am practically a minute man. I can't use distraction. Numbing spray didn't help. What other options are there? Or is this all mental?