Valuation Problem, page-97

Everyone should read "Trading in the Zone" by Mark Douglas, it might address much of the psychological angst that seems to occur when the stock prices heads south

Douglas uncovers the underlying reasons for lack of consistency and helps traders overcome the ingrained mental habits that cost them money. He takes on the myths of the market and exposes them one by one teaching traders to look beyond random outcomes, to understand the true realities of risk, and to be comfortable with the "probabilities" of market movement that governs all market speculation.