I grew up with very high expectations put on me, and I coped by over-analyzing and even rehearsing every possible situation that could develop. It became totally overpowering.
The problem with over-analyzing is that it takes up all the time that could be spent enjoying things. A whole lot of "if only" wishes or thoughts just make you miserable, and keep you from going to the beach or smelling the rain or enjoying a child at play.
The fact is, the grass is greener where it's watered. We're always more critical of our own yards (and lives) and we just don't see the hardships someone else has. Sometimes the grass just grows fine by itself - if you don't trample it trying to inspect it so closely. Sometimes you need to leave it alone, you know? Let the grass just be the grass. (Leave the beds unmade, serve everyone PB&J for dinner, let a kid go to school without their homework done, let your husband be responsible for his health, eat a cookie, whatever.)
If you keep wanting more or better, you will never have it. Because you will miss everything that IS more and better while you were wishing for it and not recognizing it.
Sometimes you have more sex, sometimes less. Sometimes you have more money, sometimes less. Sometimes you're on autopilot, and other times you are happy. Sometimes the flowers bloom, and sometimes the winter comes.
Did you ever see "My Fair L."? There's a song that Eliza sings to Professor Higgins, taking his ego down a peg when he takes all the credit for everything she has become. Here's a link to the movie: https://www.youtube.com/watch?v=t3mC4485Ue0 Anyway, sometimes I sing that song to myself: "There'll be spring every year without you" (meaning me) and "there will be a shore by the sea without you". That doesn't mean I don't make a difference, or that the world isn't better without me in it. But it does mean that I don't have to micromanage everything to the detriment of my own health.
I don't know if you were raised as I was, to never be good enough. But whatever the cause, you have similar thoughts to what I had. I worked hard to get rid of them - and, frankly, I couldn't do it alone. I got counseling, and I got some clarity on why I think the way I think (or at least why I thought the way I thought). It's now much better for me - very liberating, and I walk with a spring in my step without all that weight on my shoulders. And I'm a better mom because I'm not trying to be a better mom.
So, we all go through life with baggage. We just don't have to unpack it all the time.