Savor the small moments
One of my favorite books 2018 was How to Be a Happier Parent by KJ Dell'Antonia. One reason I loved it so much was her gentle reminder that, for most of us, the stress and strain we are feeling are part of a life we chose. Her advice is to stop what you are doing from time to time to notice a moment -- and ordinary, not-perfect-but-good-enough moment -- and remind yourself "Oh yeah, this is it. This is what it's all about."
It can be a random Sunday night -- sitting at the dining room table, reading the paper, listening to your daughter work out math problems with your husband, helping your son wipe up the juice he spilled on the table. Yup, this is it. It's not even close to perfect, but it's pretty darned good.