The most unpleasant "stuck" feelings I get tend to be associated with learning something that's new (could be a musical technique, a new codebase, etc.). At age

The most unpleasant "stuck" feelings I get tend to be associated with learning something that's new (could be a musical technique, a new codebase, etc.). At age 42, I now try to treat that feeling as a positive - it means I'm stretching my brain / body in ways I haven't done before.