You’ve said that worry is indulgent and not useful. However, isn’t it a lesser form of fear that can sometimes propel you to action (like the flight fight response)? For example, some of my clients have $x saved (Circumstance) and the thought is “This is not enough to retire”. The feeling = worry. The action = save more The result = they have more saved, which they can use for retirement.
I understand that they can also get the result with better feelings: C = $x saved T = I want to take care of myself from a place of abundance and well-being F= hopeful A= save more R= more in savings for retirement. But didn’t the worry come first?