<p>^^ For Ivys and similar under 2100 score is not competitive. You would need to be a very needed athlete to be admitted to the top colleges on the OP’s list with that score and that GPA.
I hate to say it, but 3.68 is too low, it does not matter whether the grading system is different from the US. There are many many students applying to the same colleges, even from the OPs country with much higher grades and scores. Also, colleges that accept internationals have “readers”, people who review your application, based on the country you are from, so they have very good knowledge of the way the grading works.
I dont know anything about volleyball, but someone mentioned that you are very strong in it – before i would apply to college, I would send an email to the volleyball coach of that college with your athletic information, as well as your sat score/gpa (which is good for a recruited athlete). See who responds, this may be the way to go. But do it extremely soon, and all at once. Spots for athletes are going very fast.</p>