Self confidence is the key for succes.Everyone should have confidence in their abilities. We should never think that we can't do it. We should have positive mind. We have to always think that how can we do it. How to acquire the required skills and how to complete the job successfully. If you think we can't do.,we can't do it forever. This is a negative approach. Overcome the negative thinking and develop positive attitude. You will be successful in your life.
A word of caution. Don't develop over confidence. It is always bad and it will ruin our life. Be confident and attempt, success is yours. Don't go with over confidence. Be successful in your life.