[rdl]

The thing I am most improved at at 31 vs. 17 is satisficing or half-assing anything unimportant and non-core (but doing it quickly, and ideally with as little ongoing involvement as possible), and focusing on what is actually core.

aka pick your battles.

And, relatedly, only fixing problems as they become necessary to solve vs. trying to do everything in the order of how interesting it is, or how difficult. A lot of problems just go away if you're successful, and almost all problems go away if you fail to complete earlier goals.

aka "I'll burn that bridge when I come to it"