I want to give up

I haven't had a home for almost 4 weeks now.  It's starting to get old.  I've been trying to find an apartment, but work and school has been consuming all of my time and sucking me dry of what little physical, mental, and emotional energy I have left.  I won't settle for anywhere that doesn't allow dogs and that's making it more difficult to find a place to live.  But those three little darlings are my world.
Last night I hit my breaking point for the second time.  I began thinking about the way my life has turned out. Five years ago, I didn't have everything, but I had enough to be happy with.  Life was good.  Now I'm struggling to find meaning for my existance.  If I can't find meaning for my own life, what's the point of continuing to put one foot in front of the other?  I want to give up.  This doesn't mean that I want to die.  I'm just exhausted.  I feel like: My brain is too fried to get me through the rest of school; My eyes are too lifeless to allow me to enjoy all the beauty of life that surrounds me; And my heart is too cold to ever be able to love again.
My life is no longer full of the routine questions of what to wear or what to watch on TV.  Instead, I'm constantly wondering how I'm going to make it through the night or where's the safest place for me to park.
I want to give up, but I won't.  Success is the best revenge.  Rock bottom is good, solid ground and a dead end street is good place to turn around.