Wishing I Had My Childhood Back

I sometimes find myself longing for the days when life was simpler, back when my biggest worry was finishing my homework or deciding what game to play next. Now, as a grown-up, it feels like there are so many more things on my plate and not enough time in the day to do them all justice. I wonder if it's normal to feel this way about your childhood, missing out on those carefree moments while also knowing that you wouldn't change where you are now for anything. Does anyone else experience these bittersweet feelings?