Make a List of: things you no longer believe

1. that you can trust anyone. Literally everybody will either lie to you, betray you or let you down.
2. that true love exists. As long as we're not talking about family love I am sure that it's just not there.
3. that people are good. There's just too much horrible stuff going on in the world...wars, animal cruelty, parents neglecting their children - it's an endless list, just pick one.
4. that life's fair.
5. that true magic exists. 

A rather pessimistic list, I know. Can't change it, however, these were the things that sprang to my mind first.