What are my chances? (Current sophomore)

<p>I'm extremely excited about college, it really drives me in HS to do my best. But I'm afraid that my best might not be very good.. I live in the D/FW area and today I visited Oklahoma University, not bad, pretty nice place. But I really have my heart set on the University of Arkansas. Here are my stats SO FAR:</p>

<p>3.8 GPA
Varsity Track 1 year
50 hours of community service
Top quarter of class
Hispanic (not sure if that matters)</p>

<p>I'm not sure of what else to put but that's pretty much all that I know right now, I'm awaiting my PSAT scores, and plan to take the SAT and ACT by the end of my junior year.. But if you can tell me how I'm progressing, and what I can do to better myself for college. Also I plan to become a dentist and I'm going to major in Pre-Dentistry, and other classes should I take?</p>

<p>Why not join clubs?</p>