Fundamentals of a winning investor: Knowing oneself

As Warren Buffett says, everyone should learn financial knowledge since young. If you have savings but not involved in any form of investments, you need to find out the reasons. Are you sceptical that investments can help grow your wealth? You do not know how and what to invest in? Are you worried of losing money? Or did you have bad experiences in the past which is causing you to shy away from investing?
I strongly feel you need to know YOUR reason, clear the obstacles and move on.