Teens - Confessions

Where do I start...When I was 12 i masturbated for the first time. As soon as I did I promised God I would stop. When I was 13 i looked at pornography for the first time. I followed a continual cycle of falling into sin and confessing it. Over the past 5 years ive doe this to a point where I barely feel guilt over these sins. I wish I had cut it off when I was young, as im just now realizing how big my problm is. I want to quit but Im struggling with even the idea that im addicted. Its all kind of ridiculous how ive let myself fall into this. I want Christ to take me out of it but ive realized that I need to start working to escape this sin, bwcause the Holy spirit is already behing me 100%. Any advice or encouragement would be really helpful, or prayer that I would feel guilt over this again.