1. GO to sleep EARLY, then have like an alarm clock.
2. maybe you should clean by yourself. I find it that I hate cleaning more with my parents, but when I have the house to my own, I kinda enjoy it, and goof around a little and play music while cleaning.
3. REST. make sure ur drinking water, doing an active activity a day, sleeping well, eating well.
4. use that energy for good social skills, plus it'll be good for when kids rant, you could prob match their energy.
5. oof, yea that may be the deal breaker. You HAVE to have a good temper and patience to babysit. if you don't fix that then maybe it ain't for you.