I cant do this, they keep doing stuff that makes me feel like crap?!

ive been trying to avoid cutting myself through all my mental issues and the way things are looking i cant keep it up, especially since im likely to get yelled at because they think ive taken too many painkillers (ive sprained my hand when i beat up my oldest brother because i cant take dealing with him, its been 14 years of being in the same bad situation (he steals from us for his drug habit, lies to us, tries to manipulate us - and the cops here are useless)) just because i slept a lot (but thats because these past few days ive only gotten 4 hours of sleep a night, which when you are depressed is far from enough to function normally)