Note to self.

It is okay to take breaks.

1. When you plan to take a break, it gives you something to look forward to.
2. Plus, it makes you more productive in the meantime.
3. You get good inspiration during breaks sometimes, or at the very least the wheels in your head keep on turning for your return to the task at hand.
4. The best papers you've ever written included hourly Mario Kart breaks.