Surrender them to God. I promise his love is better than any pleasure you get from lust. His love lasts, his love is enduring, it will purify you and make you new. Pray every day to love him more and more, and to draw closer to him. In those hard moments right in the middle, the choice between sin and God. Choose him. Choose him though it's hard. Though you think no one will ever know. Though you will sit down and feel like maybe you should've just done it. Because God will reward you with peace. God will free you from this, I promise. Don't ever give up on him. Don't ever give up on your faith. You think no one will notice or care, and just know everyone goes through that. And if you can respect them for staying strong, know even the ones who don't know barely anything about you, who you've never even met or talked with, they believe in you and heaven rejoices when you choose God instead. I don't know you, but just every time you're in that in between, though I can't see it, or anyone besides you and God, imagine how proud we would all be of you if we knew that you did. Have a great day, I hope my advice helped. God bless you!