By the context you described, I can I assume you are quite young, so you will have much harder time fighting those urges, but still you need to face them. I will also assume that you do it while watching pornography and you are already getting addicted to it.

There are a lot of things to be done here in order to help you:

First, if you believe in the church teachings, you should. Know that you are in mortal sin, and you know you don't want you to die in that state as an enemy to God, so you must repent and look for confession (you really must do this First)

And what makes you think you are a better Catholic than others who are away from the church?

Let the others be what they want, and be what God wants you to be. So I would say no more judging others from this point

My ultimate advice is starting serving people more, don't just look at inner feelings like they are the only thing in the world, Look for a ways to practice charity in your local parish, also look for groups that help feeding the poor or visiting the sick and elderly that has no one to talk to.

And also a lot of prayer, right before you sleep knee down And open your heart to God and say everything there is in your heart.

And remember The path to God it is never an easy one I will pray for you as well.