Self-confidence is to become aware of what Allah has given you of good characteristics and strive accordingly to attain that which will benefit you. If you misuse it you will be filled with arrogance and self admiration, which are two desttructive problems. If you deny those blessings that have been given to you, you will become lazy and apathetic. You will let yourself down and lose the blessings that Allah has given you.
Source: LinkedIn – Nabil Hassan (Founder and CEO at Ar-Raiyan Global Network