Men - Confessions

I started looking at porn when I was about 13 years old. I believe it began out of a feeling of loneliness and despair, when I was separated from my father. At that time, I didn't think that it was anything wrong with it, so I would just continue watching it. I ended up deeper and deeper in this sin until, my habits became an addiction. I've looked at porn less since then, but there are times when I slip up, and slip hard. Sexual sin constantly enters my mind, and it is hard to even deal with. I've prayed to God on numerous occasions about this, but I feel like I'm letting him down when I go back to my sinful ways. Masturbation is another concern for me. I feel it is a way to release sexual tension, and I understand that it is a sin also. I know in my heart that what I'm doing is sin, but the hardest part is freeing yourself of something that you've been doing for the longest time.