SpiceyJoe, I want you to know I am praying for you...that you will find the sites you go to (& pornography in general) absolutely disgusting to the point you are literally sickened by them. No, I'm not praying sickness upon you...just that they become that repulsive to you.
Also, I feel I need to tell you this....don't let satan try to use your age against you. What you did by confessing your weakness & asking for prayer takes courage & shows spiritual maturity. The enemy may try to tell you many different things, don't listen to him. You did not do wrong by opening up....you put the enemy where he belongs - under your feet.
You are going to have an incredible witness of God's deliverance from this weakness (sin). Praise Him...testify for Him....you will be strengthened by it.