I don't know why you've chosen 37 as the magic number, but this thread and website (linked below) have a great deal of advice from MCAT veterans, and everyone who posts puts up their score, so you can sort through for the 37+s.
Good luck. My personal advice is read, read, read, read, read. Read anything and everything, read controversial perspectives, read current events, read dry text. Focusing on reading your LAB notebooks is particlarly important, because quickly analyzing experimental set up is clutch.
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