The most important thing to consider when in the pursuit of one's desires is the fact that whether we use it or not, we all have control over our own destiny and reality just by the beliefs and thoughts that we entertain every second that we are alive. If you are afraid and doubtful, your reality is one of constantly unchanging and unsatisfying qualities. These thoughts come from a rational and conscious state of mind that we can manipulate. It powers the subconscious, it gives the subconscious orders and information. This is something we should already know and could easily believe and understand.
Once we know how to harness control over our subconscious and have the ability to enforce our will, we can always be confident, healthy, peaceful, and unafraid. When free from fear we can be masters of our universe, masters of our mind, and therefore our every contribution to the mindless chaos of the "evil" world is a chance to change reality. In this society and generation, reality is given to those who are conscious to it.