You must be joking I can not even believe that you wrote 3700 words in 3 hours. It is not a matter of story rather one has to produce such a data which is full of expression, clarity, arguments, anecdotes, narration, data, and last but not the least error free writing. Even if you have a good writing speed you can not exceed the limits of 2000 words at maximum because you have to write very carefully. You need not bother about the limit of essay rather should concentrate your attentions on quality of the essay :-p