What gives you flow? 

It could be a cup of coffee early in the morning that makes you clear and focused.

• Volume. The more you write and put yourself out there, the better you'll become. When you're starting, there's nothing to lose.
• Vulnerability. People are tired of rubbish. They crave a pure heart and violent passion.
• Versatility

If you’re exhausted when you come to the keyboard, write what you feel like writing. Write poetry or journal. Follow your passion. 

You’ll warm up your engine with passion, and it will make it easier to write the thing you don’t want to write. 

Do what you fear. Consider what you are afraid of doing, and do that thing. Public speaking? Failure? Losing money?

You will manage more by acting than by researching. Be aware of what's holding you back, then take positive action.