I Battle Depression

My life gets harder and harder to manage. So I lost my brother back in April and it was the hardest thing to recover from. Since then I've been feeling as if my life is on a downward slope. I can't get anything done at work or anything done right at least. I make huge mistakes or forget important things. My coworkers talk behind my back and turn and look at me when I walk by. I can't focus. All.i can think about is my brother. Now my parents are arguing every night and are thinking of divorcing and I'm not sad, just tired and sleep deprived. I have to go to work at 5 and they argue from 9 -3am. I want to move out but I don't have the funds. I've been working nonstop for the past few weeks and I'm exhausted and in physical pain. On top of that, I've been feeling under the weather and my boss always asks me to wait a while to call off because there's no one else to work my shift. Everyday i go to work, i hide in the supply room and cry because it's too much for me to handle. I just want whoever is toying with my life to stop. I want to be happy again. I can't get my brother back, but I at least want my life back.