Thanks for pausing to start this thread... good stuff to consider, as we rush around.
If I can add another thought: 20 yrs back, I did a drastic mid-life career change, and found out my self-worth was based far too much on how slick a job I did..... found out by suddenly being a new guy at the bottom, who didn't have a feel for how things work in the new field.
Took a nose-dive into depression, but found some help in the book "Learned Optimism", and the author's talk on "explanatory styles". I'd adopted a negative style--when I stumbled, I thought it was Personal [It's all my fault.], Pervasive [Everything's going wrong.], and Permanent [It's always going to be like this.]
Seeing my negative, default point of view for what it was started the turn-around. [A strong wife and a good doctor helped, too.] We CAN learn to make better choices, in what we do and how we think.
'End of sermonette...... Merry Christmas!.......... Gary
"You'd care less what people think of you if you knew how seldom they did." E Roosevelt