Help, Questions for my Final Year and Sat

<p>Hi,
I really want to go to Dartmouth. I have been getting Mostly A's since freshman year but had some major family problems 1st semester freshman year which brought down my GPA majorly. I have a 3.88 weighted Gpa and have gotten straight A's Freshman 2nd semester, and all sophomore year with 2 honors classes and now I currently have 2 AP and 3 Honors classes and finished the semester with a 4.15 weighted semester grade with 3 B+ and 1 A- and 4 A's. I am in track which I have been in for 3 years and plan on doing it again. I am also in National Latin Honors Society for 2 years, 1 year of Key Club, and another club and plan on leadership in some of these clubs for Senior year. I still need to take the SAT and the ACT which I plan taking March. My question is what are my chances of getting into Dartmouth and what do I need to do to achieve this goal. Any advice would help.
Thanks so much,
Daniel</p>