Help on ending an addiction?

Hey there, this is my first ever post, not entirely sure how detailed things are so I’m gonna Wing it? First off, I’m a little bit awkward and I’m a very catholic girl. I got myself into a predicament. I’ve been looking and reading about sex since I was in 5th grade. It started with porn, I began watching it and I thought it was interesting(?) and I kept doing that for about a year or two. After that I began to touch myself just to see what it was like, the problem now is that it’s become an addiction. I got into this so young and it ruins me now. See thinking/doing/anything masturbating and porn related is a sin in my church. I’m a virgin also* and well all I want now is to get rid of this addiction from my life. It hurts my relationship with god and I genuinely hate it. And yes I know that you aren’t supposed to be ashamed about it but, I am. Is there any tips or recommendations anyone has that could help me free myself from this? It has been very hard so far trying to stop and I usually relapse:/ I started this all 6 years ago so it’s really time to change for me. Thank you for reading this:)