People give up not because they aren't capable, but because they don't picture themselves at the end.
It is hard to find a person who is hard on oneself and soft on others, but rare to find the people who truly care by being actually fair to themselves only.
You were given life; it is your duty (and also your entitlement as a human being) to find something beautiful within life, no matter how slight.
Don't focus on trying to be 'the best'. Focus on being irreplaceable.