Fear of failure: The fear of failure has caused setback to many people, once someone kill there fears and go into a business, investment or project with the mind-set of success such person is bound to succeed so far they're working hard enough but once fear is entertained it could cause the person to easily give up on actualising their dreams.
I consider fear of failure the ultimakiller of dream, because when you fear to fail, you are not going to do anything and you will just wait for opportunities to happen when life is not going to spoon feed everything to you, While we are still young, or our children we should cultivate to ignore failure and to motivate and educate ourselves that failure is part of life.
If we fail in what we are doing, it just means that we are in the right direction, because success is built from failure and not from not making mistakes. There is no such thing as a perfect struggle; we all have this, and it depends on how we treat failure.