Need info
I will read through the threads later. On your original post, you said you quite your job and parking cars.
Are you able to retire , or did you decide you couldn't keep the same job?
If you are retiring from work now is the best time to do something that you always wanted to do.. Hobbies, classes, meet up groups, charity work etc.
If you still need to work i suggest you don't keep this job any longer than necessary.
as far as the past. I was king of looking back . Very bad to do that. You can't ride your bike looking backwards . You only need that if you changing a lane etc. The rest of the time you scan forward that's where your focus needs to be. Looking back only good that could be is to realize what you don't want and work towards what you do want. Another advice I can offer is don't beat up on yourself about mistakes. Just be in the moment and appreciate the good you have and the experience you have.