Exhausted

Right around 12 weeks and working full time at a day care.

I'm exhausted. I get up at 6am, here soon it will switch to 5am. I work 40hrs a week if I'm lucky, more a lot of the time and I'm so tired. Getting out of bed in the morning is the worst. I nap when I can, but it just doesn't always come into play. I don't get breaks at work.

How do I fight off the exhaustion? I feel like at this point I have no energy for the kids I work with or regular daily activities I use to do.