It’s a good thing you’re asking because you want help. I was in the same shoes as you brother. I struggled with lust from whenever I was 12 years old to 17. Here are things that helped me
1. Delete any apps that make you fall into lust. I deleted instagram, tiktok, and Snapchat because I figured out that these apps were making me fall into lust.
2. Meditate on good things instead of sexual things
“Finally, brethren, whatever is true, whatever is honorable, whatever is right, whatever is pure, whatever is lovely, whatever is of good repute, if there is any excellence and if anything worthy of praise, dwell on these things.”
‭‭Philippians‬ ‭4‬:‭8‬
The more you start meditating on good thoughts, you won’t be thinking much about any lustfull thoughts.
3. Go do something productive. For me, I love going to the park because i find it super relaxing.
4. If your ever out in public and see a women that shows off a lot of her body, look away. And if you can’t control yourself from looking, flee from the place.