Wow. I think you might of just sumed up my life right there in that little post. My mom is the exact same way. See I am diagnosed with Bipolar disorder, depression, anxiety. Im the first person in my family to actually be on medicine for those kind of things and seek psychiatric help, my conclusion is that my whole family is crazy and since they never seek help cause they believe it is shameful for them to admit they have a problem, i have to deal with their erratic behavior. The thing Ive learned from suffering from the disease myself is alot of the things that come across to other people as screaming, ranting etc... actually dont register in the persons mind as coming across that way. Alot of the time I just snap, yelling at my family and friends, knowing that I have no reason to be yelling at them and I often think afterwards how bad I feel and apologize, so you must realize it is not always necessaraly your fault and that the reason they are lashing out on you is because there is so much crazyness going on in there body that they will take it out on whom ever is around. Trust me I know dealing with people like this takes a fuck ton of patience, but the best thing Ive learned about is just to do my shit, do what my mom asks me because its a 100% better than having to listen to her bitch. Ive learned to shrug it off and laugh about it, its not something to hold deep resentment and anger against a person, you must realize they are suffering from a disease, and learn to deal with it no matter how frustrating it may seem.