Masturbation. Mins. what is ur opinion?

Should I do pranayama on the day I masturbate? Currently my routine is to masturbate once a month... I am a student... But when I do once a month... I get attached to some of my friends.. Not all.. One or 2..it does not mean people who r walking on the street I will get sexually attracted to them.. When I sit behind them on bike i get erection..if they touch me on sensitive place I get erection... When I used to masturbation once a week it was obvious I won't get feeling like that... Plus I know I am matured enough I won't get them for intercourse.. So I stay away from them.. N i am attracted more to girls too... I do pranayama.. Kapalbhati 15mins and anulom vilom15 mins n do savasana..when I sleep in night before sleep I do deep breathing for 5 to 7 mins ..n used to watch porn but it is has been 3 months I left that...but I never watched gay porn..What is ur opinion? Thanx