College admission chances

<p>I am an international student from Singapore, got a 1910 on my SATs (CR 590, math 660, writing 660), 680 on chem SAT II and 730 on math II. I don't have a GPA but my average score is about a B.
I applied to Syracuse ED (got rejected), Penn State University Park, Boston College, Boston University and Amherst College.
My extra-curriculars are concert band and astronomy club, with a good amount of community work. I did quite badly for the last few years of high school as the rigour in my school is quite tough and I usually only do well for the final exams. My recommendations are fine, essays okay too.
Syracuse was supposed to be my safety school but I got rejected there. What are my chances of getting into the rest and should I start applying to more "safety schools"?
I am quite worried :(</p>