In life, we all face many failures because we do not have enough expertise to win over those situations. To become successful, we need full knowledge of work and we should prepare well to complete tasks in hand. However, mostly people depend on luck more than their own abilities.
Instead of preparing for more difficult tasks or increasing knowledge, people prefer to remain with same old knowledge which they got many years back. To be successful, we need new knowledge and preparation because competition increases with time if we go on depending on old methods for winning new situations then we are certainly going to fail again and again.
Here human ego is biggest culprit because it stops many people from gaining new knowledge or increasing their skills. Because of ego, people believe that their old knowledge is perfect and they do not need any new knowledge. In this way, ego plays a crucial role in human failure. If you want to succeed in life then do not allow your ego to stop you from gaining new knowledge and skills necessary for success.