The question was, how to become more productive and happier?

Your top priority sorted out usually means you’ve done most of your work without knowing it.

In my experience, once I’m done with my top priority, I’ve completed over 50% of my work.

When I’m done with my top two priorities, I’m at around 80%.

The trick is, we almost never complete our plan up to 100%. I’m sure 80% is good enough. And that’s all you need.

Good luck!