Just mental illness?

I have not worked in 3 years. I am being provided income, I own a home, 2 cars, etc.

WHY? Do I feel SO GUILTY when it comes to sleeping? I will not sleep late. I am up at 6am or earier. I don't sleep well.

I always feel guilty when I try to take a nap.
I have a big guilt trip for not working is it just because it was an expectation for my entire life that I get up and go to work?

I can't shake it and it is impacting my health.
I go to bed really late too.