This is not something i wrote myself, but i like reading it. it's worth it.
How do you keep yourself positive when the people around you are so negative? How can you maintain a positive approach when the situations and events around you are so troublesome? A sincerely positive attitude is not a reaction to the way things are. Rather, it is an expression of the way you choose for things to be. Being positive is not an unrealistic or naive view of a negative world. It provides you with a solid foundation for making real improvements in the world. Being positively focused enables you to see, and to make the most of, opportunities that would otherwise be invisible. Being positive gives you the energy to move forward no matter what the obstacles may be. When you focus on the positive aspects of a situation, there will be plenty of people who disagree with you. But that is their problem, not yours. Look beyond those who argue for defeat, and find the path to victory. Whatever the current situation may be, you can always choose a positive way forward.