I don't have any words of wisdom, other then... our job changes every day. It will change again and hopefully be better. The more days you do it, the better at it you are and the better it feels.
I have to applaud all of you caregivers that have young ones of your own. Mine are all school aged and I dread the last 2 hours of the day when they come home. LOL They all want my attention at once and I'm so pulled everywhere! My instinct is to give it to my kids, but I also know that I have a job and responsibility to the daycare kiddies.
So, I think it's amazing that you have your own child and devote so much of your time to 4 other ones too. I don't think I could do it.