Start mono-tasking. Focus on one thing at time and work on growing the amount of time you can keep that focus.

I've been doing this and it has been quite helpful. Some good mono-tasking activities:

- Read books. Books require you to focus for an extended period of time on the same subject. It doesn't matter fiction or non-fiction. Just find a book you enjoy and finish it. If you don't enjoy the book at 50 pages, try a new book.

- Actively listen during meetings. Close all your other tabs and applications and pay attention during a video call. Take notes with pencil and paper to keep your hands busy and keep the focus up.

- Walk. Just take a walk. Don't listen to a podcast or music, just walk and let your mind rest. You might even apply some meditation techniques and try to pay attention to your body. Can you feel your breathe or heart rate?