I have been masturbating prone(pressingmy penis in bed) life long.and smoker 10 cigg per dayfor 6 yr.can these be the cause  for me not getting erect even seeing naked grl in front of me.elaborate.i have close grl friends.tried sex but cant.i get sexual feeling most of time.masturbate 2-3 times per day.feeling depressed .help me.i m frm nepal.so cant chat online.plz do send whats app no.or fb id.planning to get married .plz help