Since self-assessments of all kinds are notoriously inaccurate and untrustworthy and so-called "objective evaluations" and "honest opinions" about you by others are never objective and rarely if ever even unbiased enough to be useful, since instead they're problematic for any number of complicated and uncomplicated reasons, contradictory and unreliable, skewed by emotion and ulterior motive, useful only as confirmation of your worst fears or most grandiose fantasies, made by individuals whose opinion let's face it you wouldn't trust on any subject more complex than a preference for this or that brand of toilet paper, the only thing to do is to think whatever you want about your own abilities in your heart of hearts in the terrible stillness after midnight but once morning comes to behave as if you're brimming with self-confidence, wear the suit until it fits or until it no longer matters whether it fits or not. Your self-appraisal is just another opinion, you still need to do whatever it is you want to do, so you might as well because in the end this is the only thing that will bring satisfaction. Does it undermine the authority of this advice to know it was printed on a cocktail napkin? The drink sitting on top of this napkin was a Tropical Depression, which is a Cuba Libre with crushed Zoloft, does that matter? Does it matter that this advice was once given to a despondent Lee Harvey Oswald after a series of personal reversals he suffered after his return from Russia in 1962?