Doctor, Please Forgive Me. Because Of My Ignorance I Did

Doctor, please forgive me. Because of my ignorance I did a masturbation two time or three times daily since more than seven years or eight years. Now I got a lower back pain. It is paining all time of a day. just now I understand myself reason for my back pain. Please can you give me solution. Also I need your suggestion If I get marriage can I satisfy my partner or else I will be burden to my partner. My age is 27. Please suggest me.