tell you what,last year(for 7 years) i used to WATCH PORN ,every time i did i would pray to God and each time it became more difficult for me to go before God in prayer,i did this for some time,mid december is when i just put my foot down and ever since i have not watched it up until now.try that----every time after watching porn go honestly before God and ask for forgiveness trust me you will feel like the biggest hypocrite on earth and that will help in making you stop--it has made me,sometimes i dont believe ive gone that long without it and i honestly dont want it--im a teen just like you and i know you CAN stop.
you will also feel like a heavy load has been lifted off your back and then you can focus on other areas of your christian life.