The play pump hypothetical/analogy is a bit forced, in that I’ve not heard of people making lifetime commitments to give money to a specific charity. I think there are good reasons for that, one of which you mention. People do sign up for monthly donations but they are free to cancel them at will, legally and ethically.
I wonder, if Austin aged 27 gave a short presentation to Austin aged 17, would this be enough to convince the younger Austin not to be confirmed Catholic? I think the younger Austin would be sympathetic to his older self’s complicated relationship with the church. Maybe he would offer “stop going when it’s no longer good for you”.
I know a child who often has this reaction to negative consequences, natural or imposed. I’d welcome discussion on what works well for that mindset. I don’t have any insight, it’s not how my mind works.
It seems like very very small consequences can help a bit. Also trying to address the anxiety with OTC supplements like Magnesium Glycinate and lavender oil.