I hear ya. After 40 years of work and all used up, I got the ax. No one wants to hire a mid 50's used up piece of shit.
Saw the writing on the wall way before it happened and saved like crazy.
I'm multi talented and settled on a talent I could make money at on my own. Small engine repair. Advertise on Craigslist. Not killing it, but head is above water.
As you said, the freedom , less stress, 100% money goes in your pocket and work when you want is the shit.
Should've done it sooner.
GL in your endeavors.