I think in many situations high expectations and perfectionism are a useful - even necessary tool for achieving a better way of life. Like most things though, its how you use it that counts. Theres a time and a place for these things! Perfectionism at the moment sounds like a destructive element in your life - can you turn it around, take control, and screw perfectionism in to its rightful place - use that tool to improve your quality of life whilst maintaining control over the anxiety provoking elements?