Positive Thinking leads to positive action that brings positive occurances into our lives, which in turn brings happiness and good fortune. wheras negative thinking brings negative action and shit really happens -
I never think about bad things anymore as it's too depressing and brings back bad memories,
I really do believe in positive thinking leads to positive action and good things happen.
So do to and treat other people, as you would like them to do and treat you, and things will work out great.