Take some headache medicine, start the job, save money, and move out on your own. Sorry about your mom being ill, and about the restlessness in your home. That much arguing would make me insane and depressed, so I don't envy your position. Good luck in finding peace even if only from within. M
M is right, the job is your ticket out of a bad situation.
I am sorry to hear about your mother's heart attack. Its hard to watch a parent suffer and face death. I hope she is recovering quickly and without lasting problems.
You are under a lot of stress right now. Your mom's illness, starting a new job, the domestic disturbances at home.... so be good to yourself. Take a little time off in someplace nice just to unwind. Give yourself credit for what you are dealing with. Don't feel that everything needs to be solved, just focus on living and finding some degree of happiness in it which you can recognize and appreciate.
If you want some prayers, they are free for the taking. [:)]