dad says, it takes all kinds of people to make up this world. people you can't get along with, people who put you down, people who criticise you, people who make you feel bad about yourself, unworthy, ugly and unwanted. also, people who love you, people who want the best for you, people who encourage you, defend and fight for you, and support you through all the hard times.
but most importantly, you're one of the "kinds of people" that "makes up this world". if all else are unpredictable and uncontrollable, you're the factor that you've full control over. you determine if you lead your life the way you want it or the way others pressure you to lead.