You feel like you've tried everything to fight. Nothing works. You've tried confession, asking God to change you, etc.
Think about the nature of pride. Pride says, "I've tried everything," and limits your view of sin, "Maybe it's not that bad." So, once you've "Tried everything" and (yet) continue in a habit, you might begin to believe, "It's not that bad."
Pride goes even further with your response to sin; you must pay for what you've done. If death is what God accepts for sin, then you can't pay for it and come out on top. If you want to pay for your sin then you will die and not be resurrected.
Think about humility and temptation to sin. Humility says, "What more could I do," and sees sin for what it is, wrongdoing against God. Humility is hopeful, maybe there is something different/more I could do (Hebrews 12:4).
Different than pride, humility recognizes grace in your response to sin; that you can't pay for what you've done. Humility says you can do something differently when fighting sin and that you cannot pay for it; Jesus Christ fought temptation differently and more than us as well as paying for sin.