Until I read "How to Fail at Almost Everything and Still Win Big"[1] which makes the strongest argument I've seen for having a "talent stack" and combining skills that aren't typically combined. Each skill increases your odds and essentially this boils down to Good + Good > Excellent. You can leverage a combination of average skills to great effect.
The author describes himself as mediocre at art, decent at writing a joke and having business experience... not that noteworthy in and of themselves, but mixed together resulted in Dilbert.
1. https://www.amazon.com/How-Fail-Almost-Everything-Still-eboo...
From personal experience, opting for the systems approach has helped me:
- Focus on multiple activities (max 4) with time bucketing and ensuring the time bucket has a task that can be done, like the actionable gym example above
- You are not worried about reaching the goal, instead you consistently put in the effort and don't feel the void when and if any goal is completed
- Systems help a ton in tackling complex or difficult subjects.
YMMV and mind you, earlier I was goal focussed and IMHO, got lesser done.
[1] https://www.amazon.com/How-Fail-Almost-Everything-Still-eboo...
edit: added the ref [1]