sleep

So I have been getting about 2 and a half hours of sleep at night lately sometimes more (which is an improvement).. and I am so tired. I wish I could sleep, but my brain is racing. I go to work, I come home and see the kids for ten minutes and then I teach class and try to do a project around the house.. right now it is the floor in the bathroom.. I ripped the carpet out and am going to have tile instead.  I hang with my friends, I watch TV, I eat, I breathe... things just dont feel right yet.. Is there a time limit as to how long you have to hurt when you loose someone?? I want my time to be up.. I am tired of feeling like less than myself.... ugh!!!