Three things:
The second one is especially important. If you're not ready to confess to a person who knows you and can hold you accountable, you're not ready to repent. And when I say this, I don't mean your best friend: I mean someone in authority, who is one of the three categories above (parent, minister, elder).
For me personally, I do something that stirs my affection for God. Whether that be singing a hymn in my head, praying, or reciting scripture that I've memorized. However, I think the most useful thing is to take action in such a way that glorifies God. I can avert my eyes and flee temptation all I want, but I need to turn to do things that praise Him. I venture to say that it's not enough to not do the sin we need to be proactive in doing other things. I am very involved with the Baptist Student Ministry on my campus, and God has given me the privilege to do ministry here. I can say this personally has helped me significantly. It's rather hard to fall into temptation when I am sharing the Gospel with someone or serving on campus. So my advice again is to be proactive. For example, in the subway, if your being tempted, share the Gospel with someone, break out your bible and start reading right there, or help a homeless person. I know these things are "radical" and scary but I venture to say were called to do them. I especially can say that how much more it speaks of God's work in us when we turn from the lusts of the flesh to do things for HIM. I'll be praying for you friend, stay saturated in scripture and in a biblical community!
Along with your normal Bible reading, I would recommend you read Of the Mortification of Sin in Believers by John Owen. I'll link an edition that I particularly like. It has helped me understand a lot of the things behind lust and repentance
I presume this is what you are after?
the book definitely uses more modern language while trying to retain the original flavor. also where old language or words odd to us are used, the editors have included footnotes for explanation
Have you read Of the Mortification of Sin in Believers, Of Temptation, the Nature and Power of It, and Indwelling Sin by John Owen? All extremely helpful in this regard. (Here's an edited volume that contains all three, my favorite edition of them.) Perhaps Screwtape Letters too, but more likely you've read it and less rigorous in its treatment.
It’s one of my favorite books. I recommend this version:
https://www.amazon.com/Overcoming-Temptation-Redesign-John-Owen/dp/1433550083