You have a strong application and as mentioned above, there is nothing you wrote that will deny you from being accepted into a top 10 program.
Right now, I recommend you spend time crafting your personal essays. In particular, use your unique experiences, perhaps from Mexico or your time playing chess, to display your strengths. Don't tell a business school how you can contribute; show this through examples in your personal essays.
I'd be happy to answer any other questions.
Conrad and the Stacy Blackman
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MBA blogger, US News and Author, The MBA Application Roadmap