Do you find it easier to avoid distractions, or focus on one thing?

I recently came across the idea that avoiding mistakes can be easier than pursuing great results. In contrast I’ve long known that sometimes a pull factor (a desire) is better to focus on than a push factor (something to avoid).

I wonder how this applies to focus. Is it more effective to block out distractions, or focus on something important. Probably both are needed but sometimes one is more influential than another.