(if you don't get your upgrade) just think...if you had to miss just one upgrade this year, which would you rather it be...a DCA-EWR or a EWR-LAX?? This always gets me through the pain of upgrade not clearing on hops less than a few hours.
BTW -- Were you able to get seats in the Exit row in advance (I think only Plats and Golds can do so??). The exit row IIRC has the same or MORE legroom than First Class, and you won't be missing much of the First Class service (take your own soda if that makes you feel better!).