Yeah retirement sucks,I tend to agree
I just wasted 3 years of being retired.
Mostly it been an adventure of boredom, anxiety and depression. I try to keep a schedule, have done some volunteer work. I'm now job hunting at 63, not very fun. Work provides a mission and purpose, lets you use your brain skills.
These things are missing when you retire. In my case I feel useless a lot of the time. If I had to do it again, I would have kept working, even with the new "dictator dept. director" that caused me to leave.