Adam and Eve where not the first humans. There was actually another guy named Johnny. He was very brave, because he had all his ribs. Adam on the other hand was a coward.
The two guys were always fighting to see who would get Eve. These fights were short as Adam was too much of a coward. One day a Lion came from the bushes. Roaring with all the power of his hunger, the lion scared the crap out of poor Adam, who decided to flee, not before grabbing Eve as he disappeared into a nearby cave.
Johnny was to brave to flee, so he decided to stay and play with the little kitty...
Today, the gene of fear is part of us. Had Johnny perpetuated his genes with Eve, we would all be brave. But being brave is about dying sooner. Fear is the most important asset on the big encyclopedia of survival instincts.
We are afraid of heights, because falling of a cliff is lethal. Afraid of spiders because a sting could prove fatal. And the same applies to snakes and any other animal which can endanger our chances of survival. Such a trait is embedded in us!
But fear is more powerful than just animals or inanimate objects. Some people are afraid of investing! Clearly, loosing money endangers our chance of survival, while having it stashed for in case of an emergency does not.
The problem with this fear, as with any other which is nor controlled, is that to grow stronger we need to do precisely what can kill us! If we had not overcome our fear of heights, airplanes, bridges and roller coasters would not exist! If we had not overcome our fear to venomous animals, anti venom could not have been developed. And if we had not overcome the fear to loose money, there would be no rich people.
You want to be rich? You gotta risk it! There is no other way. Place all your dollars below your mattress and that is where they will stay (until somebody figures it out and robs the heck out of you). Invest the money and make more. Yes! There is a chance you will loose it, but if done properly, chances are in your favor, not against.
How much rich people are out there? You may then say "Yes! But how much poor people are out there?" Just analyze the amount of rich people that are rich because they didn't risk it and the amount of poor people that are poor because they lost all their money.
Chances are in your favor! What will you do about it?