Dear Greg,  

The whole area of our sexual tendencies, our tremendous weakness there, is humiliating. Especially when we know it is wrong and can't figure out why, if we know, we can't, just can't seem to overcome the problem, or even get to the bottom of it. 

The fact is we are weak. The fact is the devil tempts us. The fact is that having things so easy to access privately as over the web brings out our weakness even more. The fact is there is tons of this going on around us. How can you pull out of it? 

Fortunately, there are steps that you can take.  

First you have to pray right. Always tell God why you need his help. Every time you pray, or go to Mass and Communion, tell him you are too weak on your own to correct your problem. You need his help. Tell him you need him to change you on the inside so you will want what is right as well as knowing it is right.  

Then you really need to get a spiritual director and a regular confessor. Speak with him clearly about the type of problem you are facing. This might be hard to do at the beginning, so if you find it hard to come out and say it, write it down and give it to him to read. Say, this is what I want to say but can't. Once you take this first step the going gets much easier.  

Third thing to do is set up a system of accountability with him. If the main reason we fall is our weakness, we need to have something that will shore us up. Be very concrete and focus on what can make the most difference: what you access on the net, who you cyber with. Take care of this first. Then take care of the other things, your thoughts, etc. 

You will also have to look at your activities, how you spend your time. Make sure there is a healthy mix in your day between school, work, sports, prayer, helping others, a hobby that makes you interact personally with others (music, band, for example), get involved in a youth group, etc. The more time you are on your own in front of your screen, the more likely you will give in. Find good friends. Do worthwhile and fun things together. Be busy. A lot of this problem can be just inside your head, and often all you need is some oxygen.  

These points will help you get started. From what you say you seem to have gotten yourself into a bit of a corner. It will take some effort to get out of it, but I do think you will be able to get things together like they should be and you want them to be.