Harri
Obviously thinking about gehennom is not working for you. A.better. idea whould.be to make up.your mind you will try very very hard to stop and be mindful of it. Whenever the urge comes to bite just tell yourself “theres.no need to bite it now ill do it later” basically by pushing it off as.much as you can u will end.up.doing it much less. This will definitely work for.any thing that is a bad habit. Just push it off. Dont tell yourself that its assur and you can NEVER do it. It.just.makes you feel trapped and you give up fighting. Just push it off for.an hour or.whatever and distract yourself.by getting busy with something else. This really works.