What are my chances??

<p>Hi, i am an international student who wants to apply to the following colleges:</p>

<p>Harvard University
Stanford University
Caltech
MIT
Cornell
JHU
Georgetown
Carnegie Melon
UC-Berekeley
UC-LA
USC (my sister's school)
UC-SD
Boston University </p>

<p>I am a senior and have taken the SAT twice:
1st attempt: CR 570 M 800 W 640
2nd attempt: CR 610 M 770 W 760 (10 essay)</p>

<p>I am also planning on taking 3 SAT Subject tests; chemistry, physics and math II, in a month's time</p>

<p>I have a really strong high school transcript; especially in the sciences and math. I have completed more than 100 hours of community service teaching mathematics and english at a school for underprivileged girls, at a home for the disabled and at a charity hospital. I won a silver medal for a rowing competition at varsity level in my city. I participate in various math competitions and science fairs. A few more ECs here and there. </p>

<p>Do you think i have a shot at the colleges im interested in? Will not asking for financial aid improve my chances? Please help!</p>