After 3 1/2 years in 'the struggle', here are a few thoughts:
1. There are no chidushim - as the mesilas yesharim writes, we already know most of the things we need to know, it's a matter of reviewing them and putting them into practice.
2. Be patient with yourself - these things take time. But at the same time, don't fool yourself - you know if you're progressing or not.
3. In the beginning stages of recovery THERE ARE NO REASONS THAT WORK, abstain for the simple reason that you trust those who TOLD you to abstain, that it is good for you no matter how it feels, and that you will be fine by not giving in. Just TRUST.
4. 90 days is a very good way to start - it'll teach you things you'll need later on. Stay on the roller coaster and fasten your seat belts - it's a rough ride.
5. The only way that you will actually know and realize that something is disgusting, is by staying away from it. No intelligence in the entire world can convince you it's disgusting unless you stay away from it. Similarly, if you stay away from learning Torah and doing mitzvos, THEY will become disgusting in your eyes (R''L).
6. Throw out all Hollywood movies in the house - they are poison to us who struggle.
7. These things may take years to accomplish - have patience withyourself. As long as you are moving in a forward direction, you're ok. Itdoesn't matter if it's taking a long time. Of course, if you can, faster is better.
8. Learn to live with discomfort, it won't REALLY kill you, even though it will FEEL like it's killing you. A real human being always has a little discomfort - in staying away from what comes natural to him, but is really bad for him.
Hatzlacha to us!