It's really nothing comparing to a toddler's day

You have to play with a two year old for a day or two to know what is tiresome being a parent/baby sitter.
Your child won't go to a nap until exhausted. Three meals a day, one and more hour outdoor play,
the rest of the time you go figuring how to keep her entertained and occupied. And her butt cleaned.
Potty training is a hot mess, of course.
There's never a break till your brat is gone for good, with a job and family somewhere in the country.
Then would you want to babysit the next generation babies, maybe two in a row? You will.
Still love your child and show off her video on YouTube everywhere? Yeah, you will, forever.
Parents seldom retire. Hang in there.