I m 26 yr old. but i have pecuilar prob.i have been masturbating prone(penis pressing on bed)all life.but can do conventional way nowdays by rubbing penis at bed for some time.dont have too much erection in whole day.tried sex few time with gorgeous grl but couldnt get erect even while they were naked.i m smoker.10 ciggs per day for 6 yr.is my prob psycogenic or vascular.i m planning to get married.help me plz