I used to stress out that I was not focusing enough on a specialty, and was constantly jumping from thing to thing. Focusing is good to a point, but at a certain point, your free time is your free time and if you want to take a day to mess around with Haskell or something, don't feel bad about it! Some days you are allowed to Treat Yo Self!
Absolutely. My worries are usually the opposite, that I'm not exploring widely enough. Either way, they are mostly unnecessary worries. Progress happens when you stay enthusiastic about craft, no matter where you put your focus.
The list of my open Tabs tells the same story ;)
You are absolutely right!!
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