The extra money and donations to conservation groups is rewarding, but I enjoy fly tying a couple of hours each night to wash out the day's stress with something fun, satisfying and relaxing. I sleep better at night as a result, and I would never be able to fish all the flies that I want to tie anyway!
This has been effective therapy for me, and I recommend to everyone: Find something to do with your hands and brains that doesn't involve scrolling through a smartphone! I thank my customers for this opportunity and I hope to be able to continue this for decades.