- Breathe deeply with your eyes closed for a couple of minutes.
- Start doing one thing at a time (preferably the most important, not the most urgent). Just one thing, but focused.
- When you finish one task, start on the next.
Your ability to concentrate will do the rest.
Remember only one thing at a time without wasting time hesitating, procrastinating, and obsessing about what to do next.
The better your attention span, the more focused you will be, the better your work will be, and the more productive you will be.