You don't have to be great to start, but you have to start to be great!
Have you ever been in a meeting when someone asked for suggestions about how to accomplish some goal? And have you ever had a suggestion but were hesitant to speak up because others might think it was ridiculous? And has the person sitting next to you offered their suggestion, which was exactly the same as your suggestion? Who seemed ridiculous then?
If you never speak up, if you never take a chance, if you never move...you will never go anywhere. Take a breath and take a chance. You'll be stronger for it.
It IS All In Your Head!