Only a dreamer or a fool would pick a stock at random and expect it to take off like a space ship from its launching pad. Certainly this has happened - about as often as a dime-store clerk has become a Hollywood star or a boy born in a log cabin has been elected President of the United States - just often enough, that is, to keep alive the Great American Dream.
I think I would cope like anyone copes with any tragedy. I'm sure I would be very upset for a while and then there would come a point where I would either have to stay in this place of darkness and anger, or I'd have to accept that it happened.