I noticed a few days ago that I get more irritated easily and the way I talk became so demeaning and mean. It exploded today when my mother cried when she said I need to pay attention to what i said because she was hurt. I know I became meaner, and I tried to lessen it but things just got worse. I don't want to talk to people when I'm like this, I'm so irritated most of the time and the smallest of things got me off. 

I feel like the biggest loser of a daughter. I hurt my own mother. I'm so stressed and sad that I just became numb now. I know I'm not a good daughter because I've been mentally sick for almost three years now. I deprived them physically and also financially. We had one of the biggest fights and I feel so negative and numb now. What should I do ?