Sexual problem. Its not erect and i m!

I am 21 year old and i used to masturbate for the last four years until I developed a bent penis.  My penis head is not covered by skin and its by birth, not from circumcision. About 2 years back i found that masturbating on the bed is more exiting than by hand for me and due to that one day i slightly bent my penis and had a slight pain in the middle of the penis.  But that didn't bother me too much so i masturbated like that regularly.  My question is this now. For the last 6 months that have passed i realized that i was doing it in the wrong way and that i have hurt my penis,  and i discovered I have a bent penis with a bend in the middle of the penis on the left side, but i don't have any pain in erections now.  i used to masturbate with my hands 2 times a week.  There is no difficulty in ejaculation and pain in erection,and yaa doc. One more thing when half erected it bents downward easily and not upward as its tight some time i had seen hour glass shape when its not erect and i m