Good morning, Hello am masturbating since from my teenage i.e around 12yrs and i enjoyed every moment till nowi.e upto 21.now days am dng more than thrice a day nd semen is coming out in large quantity.but from some days semen is not coming as much as before and mypenis is not coming into standing position as it is before.may i know the prob nd hw cn i overcome it bcoz with in this month i am gng to have sex with my gf for the first time plzz help me so that i can have sex safely.