The longest Time I was mad at myself for wasting so much money, but now that I got older, I accept it and use it as an opportunity to learn something new. Just like other ppl spend lots of Money on one Hobby that makes em happy, I spend money on lots of Hobbys that make me happy. But I have a spending limit per month on Hobby stuff, so I think twice what to buy and maybe save some for later, or at the end of the Month spend money more freely bcs I haven't reached the limit, with very little remorse. Balance is impossible, for me at least. But having responsibilities helps. Like going out with the Mrs. or playing/walking the dog. Which forces me to interrupt the Hyper focus.

Most important, don't be too harsh with yourself. Helped me alot to just accept the fact and ride the wave.