My chance?

<p>ACT Composite: 33
Weighted GPA: 4.3
IB Diploma with four HL (double science)
UC Berkeley Summer course Math 53 A</p>

<p>I do have more extra curricular activities and awards/honors.
Supposing my essays are descent, what is my chance of getting into Carnegie Mellon, Cornell, and UC Berkeley? I want to major in engineering.
Is it possible for me to aim for better schools?</p>