1. Switch Your Brain: Be Happy.
This exercise sounds weird, but it may work for you – quirk your lips to the right, to trigger your left brain:
If you pull the left lip back repeatedly, it can trigger the right brain. You may feel sad. Pulling back the right lip can trigger the left brain, and a feeling of happiness.
Go on, try it. It works for me, and it may work for you. You should feel a sudden little jolt of happiness which will make your writing task seem a lot less intimidating, and more fun.