When you doubt something or yourself, ask questions about the subject, learn about it, educate yourself, ask for help from someone you trust or admire, etc... there are many ways you can PURSUE YOUR DOUBTS. 

Don't sit on the sidelines like everyone else when a doubt arises. You owe it to yourself and your constant pursuit of never-ending growth, to validate or invalidate your doubts. 

DOUBT + ACTION + EDUCATION... Be a Champion & Pursue Your Doubts!