This is gonna sound stupid considering how much worse other peoples situations are.
But it's so hard to improve at things outside of work when you are stuck working a full time job.
I love playing chess and during the last week I had time off work, my rating went up over 100 points and I could concentrate and played really well. Get back to work and I'm losing all my games again because I'm tired and stressed when I get back home.
My wife loves watching movies and writing reviews and articles but she hasn't done any of that since going full time.
What's the point of working if you can't really enjoy the things that you actually enjoy doing.