Whenever I feel my brain is scattered and there's too much to think about, I like to pull out some A3 papers and start mapping out different areas of my life, projects, tasks, etc. This gives me enough space to think and spread out across the page the more I drill down and explore my mind and my commitments.
I once attempted to use flip chart paper because I felt my life got REALLY complicated. But that size of paper requires a lot of room on the desk and it's hard to reach the far ends of the paper. This adds too much friction for me.
I tried using digital solutions, but I may need a bigger screen to make that work. I want to see the full picture of my commitments all at once. Having to scroll to different parts of a document or a mind map misses the point for me.
Having said that, I would point out that it's easy to get caught up in planning and over-planning, trying to see the big picture, when I also need to identify specific tasks to complete every day so I can feel satisfied with what I've accomplished for the day.
What do you use to clarify your big picture for your life and work?