International Students SAT Scores

<p>Hello
I want to study in USA, but i'm having problems with CR and writing on SAT cuz my native language is spanish
My scores on SAT are like CR600 writing620 Math800, SAT II Math Level 2 800 physics 800 TOEFL iBT 101. with those scores do i have any chance to be competitive??
Also can someone tell me ways to improve those bad scores? Critical reading is really hard to me</p>