Suggest Treatment For Premature Ejaculation And Disorientation Of Penis

Dear Doctor,i am raj living in dubai uae,i have a problem which i need your advise,i am not married ,age 34 male 65 kg 5.7ft height,i am having a habit of masturbation everyday,and and like to stop this,now i am ejaculating in less than 5 min,i like to hold but cannot.i have tried sex with my girl friend and she is not happy.since i cannot hold more time.My penis is 6inch and 4.5grith,while doing sex but it curved towards down.i dont have any pain but i never seen anyone with downward curve,is there any way to make curve upwards and get some more time in ejaculation.thanks & regards
Raj