She even threw a sarcastic "hit yourself harder"comment in there.

It's only when I held a knife to my throat a few years ago that she was like "don't do it!" but other than that my family constantly belittles me and my struggles. It's easy to say that you care about a mentally ill person until they start acting mentally ill. 

I think I should commit to offing myself just to spite them. Maybe they'll wish you themselves that they understood me a little bit more.