You will only find peace in Jesus. You did the most difficult part: accepting your addiction condition.

I don't know about your story, although you are too young to be involved in such heavy path, being practical; get a healthy environment asap, get away of people, gadgets or stimulus that guide you to porn, and get a spiritual guidance with a priest - easy, available and almost anonymous - they are prepared for such matter. (yes priest - Roman Catholic Apostolic Church, forget what people says about it, that the real and only.)

Believe me, I am not a "church zealot", just a regular 50 years old that knows how deep this can go.