Do that thing you're putting off. 

"Swallowing the frog" or "eating the frog" is a phrase people use to mean "do the hard thing."

Whenever I've swallowed the frog in the morning, my career takes off. I get known for getting things done. Everyone wants to hire a "get stuff done" kind of person. 

Be that person and you'll be more likely to get promoted. 

So go swallow the frog.

Listen for some techniques for getting your nerve up to face the tasks you've been putting off.