Getting Things Done by David Allen gave me a framework to get out of the weeds when I am overwhelmed (usually once or twice a year when I stretch myself): build a to-do list that us complete enough to stop thinking about what you have to do, if a new task take less than 5 minutes just do it right away, and then prioritise the rest.

Deep Work by Cal Newport gave me a way to think about my time management: information work is not the same as a factory line where doing the same thing at similar productivity from 9 to 5 makes sense, and it is important to dedicate long stretch of quality time to be productive (vs busy).

There are no silver bullets, but learning what worked for a group of people, testing it for myself, adapting it, and using it as needed has been helpful to me.