As an introvert, you can be your own best friend or your worst enemy. The good news is we generally like our own company, a quality that extroverts often envy. We find comfort in solitude and know how to soothe ourselves. Even our willingness to look at ourselves critically is often helpful.But, we can go too far. We can hoard responsibility and overlook the role others play. We can kick ourselves when we're down. How many times have you felt lousy about something, only to get mad at yourself for feeling lousy?