Do you have any hobbies or interests or friends? I'm sexually impulsive myself, I used to hook-up with people a lot and masturbated excessively (sometimes I'd do it all day, I couldn't get satisfied or stop) although I started going to school and being more active, which helped with my self-esteem, helped to curb loneliness, and made me feel more motivated to where I could engage myself in/focus on interests and hobbies. You shouldn't feel guilty about masturbating, but if you feel you're doing to an excess to where you feel you have no control then it might be a problem... just look at other areas of your life and see if you can change anything. It worked for me!!