Yes or No?

The full time auditor at work is leaving eventually. I have the option to work the same shifts I work now or pick up some. Do I want to? I dont know. Obviously I can use the money but can I afford to loose my sanity? I actually left this job and was replaced by the girl who is leaving. I dont think I can replace my replacement. If the job wasnt an overnight job I would have no problem at all picking up more shifts. Right now it is easier to work overnights since I have no car and I can always get a ride with Shawn when he goes to work. Or take Shawn or Colleens car if they will be home for the night. I left my job for a reason. It was killing me. But now the job market is so scarce I dont think I can pass up the opportunity I already have. Its a  good thing I have time to make up my mind.