If your natural tendency is to be pessimistic, you can increase your level of optimism by challenging any negative thoughts or ideas you have. I'm just going because it's the politically correct thing to do. The sun is shining now. This could be my opportunity to rub elbows with Jim in Marketing, who might help me get that promotion I want. What a perfect opportunity to improve relationships with my co-workers.
Many events are unavoidable and beyond our power to control.
People complain a lot about taxes, but that doesn't make them go away. Traffic jams happen, especially, it seems, when we running late. Stewing over these uncontrollable situations zaps the vital energy we need for health and balance. It's better to accept the things we cannot control with a little bit of grace. Try to recognize the things you can control and the things you cannot.