Think of lack of knowledge as being blind. Think of lack of practice as being handicapped(a disadvantage that makes achievement unusually difficult). Now I am sure it drives the point.
Only when you gain knowledge and practice it to understand how it fits your business, you will be able to use social media for business growth.
Learn a tool-practice it-teach someone. Now repeat. Thats the way to go. Cut the hype and go for organic growth with your tools.
Remember knowledge and practice should go hand-in-hand.