this is my brain on...work

I have decided they should replicate the "This is your brain on drugs" commercials with "This is your brain on work." My brain is so completely fried this week, and if it weren't Friday I think I might call in sick tomorrow. I have no mental capacity left, and nothing more to give. When did I grow up and start having all this responsibility? Is it too late to go back to being a kid? I miss the days when the toughest decision I had to make was what outfit to wear, or what I wanted my mom to make me for lunch... *sigh* I certainly don't miss the lack of freedom that comes with being young, but I do miss the carefree days and the ability to still have some brain power left at the end of the week! :) I love my job, and I'm incredibly thankful for it, but it can truly be a thorn in my side at times. What I have to remember is that there is no job, place to live, spouse, friend, etc that doesn't present it's challenges, but working through those challenges is what makes me stronger and what makes these things all the more important.