The “achievements” I’ve been making around, for instance, keeping up with learning or exercise objectives just doesn’t provide the hit.
So I don't know if I'm a masochist or what but since I retired in December, I've been choosing to do new things I know nothing about. I've been failing at those things. Kind of a lot.
I may just miss that learning curve I felt when I was working on something big or new at work, but once I finally start to figure it out (not even master it, but maybe see a slight improvement, like fewer fails or slightly better understanding of those fails), I feel pretty good about it. I don't know if it's akin to a money buzz, but it's constantly got my brain firing up. I fall down learning rabbit holes constantly now, not because I set a specific concrete goal for myself, but because I was randomly like "I want to try to grow these Shiitake mushrooms and oh my god there's a lot to this... flow hoods... agar plates... do I need a good set of scalpels? Damn you contamination!! Maybe I can just buy Shiitakes at the store like a normal person... NO! I will grow them myself because... because reasons..."
Spoiler alert: I have yet to eat my own shiitake mushroom but not for lack of trying! :DPerhaps if you've been focusing on goals that were similar to what you were doing before retiring (exercise goals for example), maybe you pick something completely foreign to you and give it a go. Maybe deliberately choose something you know you won't be any good at. Once you get good at that thing, you might feel a similar buzz.