Should I go back to school?

I cant make a decision, I really dont want to get into debt and just need some opinions right now. I'm 20 years old, I have a 7 month old. I havent had a job since i was pregnant, this past month I've been applying everywhere but havent had any luck. Obviously i need a job where I can afford daycare and Bill's and our needs. I am in a relationship with his father so hes been supporting me since i was pregnant. I'm nationally certified as a phlebotomist. But just can find a job, I understand finding a job can take awhile. I just want to see what yall think. Should I just go for it and get more under my belt(I do qualify for a grant but I will have to pay a few grand for what the grant doesnt cover) or just keep trying to find a job and not go back to school.