Here is a simple heuristic to determine what to do, delegate, and drop:
If it will matter in the long run and you’re the best person to do it, do.
If it will matter in the long run but you’re not the best person to do it, delegate.
If it does not matter in the long run, drop it (as fast as you can).
You might be wondering: what does it mean for something to matter? That’s entirely up to you and what you value.
The only way to compete with a world that is ruthlessly seeking to grab your attention is to be equally ruthless with where you choose to pay attention.