Many people have fallen into a bad habit of taking things too personally because they want to protect the smaller picture (self) instead of the big picture (other people, relationships, the situation, and sometimes the truth). How do we get through the times where having a positive attitude seems impossible? Well, we can always choose to act as if the positive feelings/attitudes are still there. It is that simple, and it is always our choice.
We choose all of our feelings and actions. No one else is at fault for what we think, what we feel, and how we act. As Project Managers we can't let others dictate how we feel about ourselves. Project Managers by nature need to have thick skin and can't let the opinions of a few dictate how we feel and act.
It isn't a radical idea to believe that we can choose how to behave, regardless of how we feel. Additionally, by changing our behavior we might just discover that behaving differently can change how we feel. This changing of behavior knocks aside the notion that feelings help us find truth, especially when we are trying to assess an important business or life situation.
I feel that the old saying "Perception is Reality" is destructive. Many people act solely on what they perceive. Perception is only Perception. We can argue about what Reality is, or is not, but basing Reality on what we perceive can really screw up Reality for us and everybody else.
Mental Note for Slow Learners: Sometimes it seems like you can't change anything. Sometimes by changing yourself you change everything.