Baller123, can you explain what you mean by "didn't give the application the time it deserved"? I applied to 11 programs, and -most- of the applications were basically the same. Some, like Stanford, did have substantial additional question prompts (I'd be hard-pressed to call them essays). I did not apply to Columbia, so I can't comment on that one specifically.
However, I'm just curious about the time and energy you put into each individual application -ignoring the time to paste in your history and the duplicated part of your SoP.