I do regular masturbation in a week 2 or 3 times from last 4 years, recently I started sex with my gf but but sperm ejected b4 sex and very hard to do a second trip, when I start 2nd trip I done 4 or 5 tip only, nd second or third day same I am suffering same problem, I feel very embarrassed don't know what I do and I am just 27 years old please tell me it is possible to get my stamina back or not.