zalim or dholim

Zalim ... Wow this word is scary.. The feeling being bad threaten is awful! That is correctly says in Hadist "Takutlah kalian akan kezhaliman karena kezhaliman adalah kegelapan pada hari Kiamat” Imam Muslim from Jabir bin Abdullah. There are two categories: 1. Zalim to yourself 2. Zalim to other If you did it to yourself, you will get the punishment to you. But if you did it to other, not only youwill get the punishment, you will also be sued by the one you treat badly. However, do we realize if we have do a “zalim” to other? If you realize it, please ask for forgive to one as soon as possible,!! But what if we dont realize it??? Make a pray every night,wish that Allah forgive what we've done today whether we realize or not