Remember, you can only deem yourself worth-less if you compare, only if you compare to and with others. But realize you are the only one who has made the ratings to use to compare in the first place. This is a 3, this is a 5, on a self made up scale of 11.
So basically you’re only competing with yourself.
And even if you ‘objectively’ were indeed a 3 or a 5, there is probably not a whole lot you can do about it anyways either. Sometimes it is healthy to discern where you are at, but not to use it to compete with, not even with yourself.
Now, what would the comparison be like if you were alone on the planet? Who would you compare yourself to or with? The comparison is gone, and the whole notion of worth-less-ness is gone, evaporated *poof*
Now continue to live like that