Never let anyone make you feel like you are not enough.
Everyone is unique and are made individually. Even twins, triplets, quadruplets, and quintuplets all have their own fingerprints and DNA. Therefore, no one is exactly the same.
Is that not wonderful!
This given everyone a right and a purpose to be whatever they feel and desire to become. Why should anyone feel the need to compare him or her self to anyone else? Sure, there are some people that maybe more fortunate than others - that does not may them any better or less then anyone else.
In addition, some people may learn at a different rate or retain information at a different level - that still does not make a person better or less than anyone. It boils down to that individual - applying them-self. Not comparing him or her self in such a way that they feel like - who they are makes them better. What they do not have - makes them less.
Being you is more then enough. Discovering who you are - what makes you who you are? Who made you who you are? Why are you who you are? Taking the time to really figure out - "Being You; that's Enough".