[NeedAdvice] Crumbling under stressed and generally very negative... Ready for a change!

Basically, grad school is killing me.

I have been dealing with depression for five years, but it's never been as crippling as it is when I have a mountain of stress piled on. The pressure I have on me from several different areas is debilitating, and it's starting to affect my personal relationships and my marriage a bit, too. I'm very negative and I find myself complaining a lot, but I can't get myself to stop.

Give me your best advice! For focusing, staying positive, not dying from stress alone, and most of all, appreciating my husband's efforts to tackle the monster that is my life right now!

Edit: realized the title typo a millisecond too late, please forgive!