Hurting everybody around you because you've reached your limit doesn't fix your problems. It won't bring her back. It won't make you feel better. So what purpose does it serve if it doesn't do anything to advance or change things?
If I had a fix-all solution? Dude, I would SO give it to you right now because this sucks. And I know it does. But you aren't the only one hurting because of suffering a loss. You aren't even the only hurting because of this loss. What gives you the right over everyone else to react this way?