Suggest Ways Of Enlarging The Penis

I m 40yrs old,at the age 18 I have started masturbation and now I fill my penis too short only 3.5 inch and completely bend,so I need to increase my penis without pills and surgery tell me easy advise or excercise till now I am not married because I afraid if my partner refuse.So please help me.Is olive oil or baby oil is benefit to increase the size of penis please tell me detail thanks you