The article provides for this by saying that exploratory mode is fine. I recommend reading the article, it’s good.

So the article suggests we either do one thing, or more than one thing.

That's very valuable advice, thanks.

No, it does not. The article says that exploratory mode is one necessary step toward ultimately narrowing down your focus.

So we need to do more than one thing, this helps us choose one thing and focus on it, then when we want to do something else, we do more than one thing again, and choose another one thing to focus on.

Very wise. It gives us a specific order of doing things. Many things, then one thing, then many things, then one thing. I was kinda doing the opposite.

Not too many things though. Spreading yourself too thin is an excellent way to never become good enough at anything to reap the benefits of it.

And most importantly, stop doing things that not only don't work, but don't work well enough to make room for new opportunities to try.