i'm almost worn out

I can barely open my eyes. It hurts when i blink. I need rest after two exhausting weeks. My feet is starting to crack, i have blisters on my toes, my ankle cudnt keep up with my busy lifestyle, however my mind is still strong.. i know i can pull through this without needing to be rested-out for a certain period of time. i just cant afford that right now. But i'm tired. really tired. just plain simply tired.