I've been implementing a "power hour" approach, and it's been quite helpful.

Basically, I write down a task (or a few smaller tasks) to tackle during a dedicated 1 hr. In this hour I can do nothing else.

I've found that I am forced into some kind of flow, and am forced to confront the discomfort that can come from actually focus on things. It's not hard to be uncomfortable for an hour a day.

I don't really know many others that do exactly this, but this has helped me (Also, I have ADHD and focus can be an issue for me).