Lust is a bitch

I have recently deleted all my social media apps that promote things that counter a ideal christian view and cause sin. One of my main reasons for this was lust. I recently just downloaded reddit and joined this christianity group and a couple more other groups im intrested in(fishing, film photography). I came here to stop sinning especially with lust but ive found out that this app is filled with ungodly things and i just dont know what to do, i cant stop lusting online. Ive been struggling for years. I dont know what to do. Please help me.