to stop gambling you need to have integrity in your mind, you have to bee focused on stop. Block all the site for gambling and lock your btc is some places where you can't access so easy
Easier said then done as most gambler want to win back what they lost and will keep putting in money and just keep losing more as they will lose their temper and bet bigger and bigger amounts until they have nothing left to bet with. Then it will be truly over for them.