There are difficult things. Hard things to do. But if you don´t learn to do them, your life can get worse. For instance: say "no" and many friends will go out of your life. Say "no" and somebody who loves you can get hurt easily. And they will leave you just for a simple word. But if you say "yes" and do what they want you to, you will get unhappy. Be yourself anyway!! If you don´t want to do something you don´t like, say "no". It´s easy: NO!!