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There's a thing called Block Site for android and chrome
There's an app called blocksite on android that can be used to block porn websites and such
Find a distraction and focus on something other than porn
There's an app called Block Site for android which allows you to block sites as the name implies. Not sure how it works with chrome for android...
If Blocksite isn't enough for you, there's a method involving editing computer files to block websites that I use as well as blocksite. Blocksite...