How do you stay focused?

When you are working on your own, I find it hard to stay focused.

And what I mean by that is new things may come up, either a problem or an opportunity and then you find yourself doing something different from what you planned...

I actually didn't realise how much this happens until I started journalling, and when looking back I can see clearly a complete shift in what I am working on.

To solve that for me I have come up with a simple document on my Notion called: Focus.

I list down the high level items I am focusing on, they are not a to do list, but the direction and objective.

Are you focused by default? how do you stay focused?