Chances? Please and thank you

<p>I'm a high school senior applying regular decision to Columbia. I have a 4.3 weighted GPA and 3.98 unweighted.
-ACT-29 composite, (33 in reading and english, 26 in math and science, and a writing score on the way)
-2 SAT Subject Test scores on the way (Biology and Literature)
-I've taken the most rigorous course work available, including a dual enrollment program which will result in a nursing certification
-I'm currently ranked 1st in my class (rural school, only about 250 in my class)
-5 on AP Composition
-Vice President of NHS, Top scorer/medal winner in Academic Decathlon, member of Big Brothers Big Sisters, over 200 hours in volunteer time, Rotary Club Student of the Month, participation in multiple summer programs at various Universities
-neither parents hold degrees
-low income household</p>

<p>Thank you so so much!!</p>