How to do homework while exhausted?

Right now, I am finding it extremely difficult to do my homework. I am in all honors courses, with boatloads of homework every night. I am also involved with Drama Club too. So basically I have school from 7-3, then Drama 3-9. Next week is our tech week, so I'll be at school from 7-3, then Drama 3-11 at night every day. That week I will also have to keep with all my homework too. How do I stay awake to do homework?