I retired voluntarily 6 weeks ago. I'm in my early 50s. Fortunately, my CFP told me, no problem, I'm good to go. I thought I would regret it by now.
No way. I do not miss it.
I miss my people, not my job at all, and I lived, breathed, and ate my job for ages. Took it seriously and was good at it. It was a huge part of my personal identity. Now, even a short 6 weeks later, it's firmly in the rear view.
It may be too late for you to join the FIRE movement, but I would encourage you to work towards it if you can.
If it's too late for you, teach your late high school or college-aged kids the time value of money, dollar cost averaging, and the concept of paying yourself first. Tell them about catch-up 401k contributions, and that it might hurt temporarily, but they'll thank you later. My dad did that for me when i was a senior in college, and here I am without a care in the world, free of AT&T and no money issues to worry about.
Take care of yourself first. My job ad was approved to post before i left, and I gave 3 week's notice. Literally everyone and everything in your life is more important than AT&T. Our leadership is among the worst and no one cares. Nothing will change.
Just do it.