Chance of getting into Phillips Andover?

<p>I know I already posted this before, but I wanted to add some new information.
Last year (I am a rising sophomore) for my final grades I got an A+, a B+, and 3 Bs. The A+ was in bio. I plan on getting straight A's next year.
I volunteer at the Red Cross, Kilmer Center, (with disabled kids) and Georgetown University Hospital for several hours a week, and I will also be the head of sophomore community service next year.
I organized the first blood drive at my school for the first time in several years, which was a lot of hard work.
I have played both piano and tennis for 7 years. I have won ice skating medals.
I speak three languages fluently (Chinese, Farsi, and Spanish)
I am the co-founder of a club that raises money for cystic fibrosis research.
I am also in several other clubs, such as the South Asian Student Association and Black Student Union
I held a fundraiser at my school that raised almost a thousand dollars for Alzheimer's research.
I currently go to a very competitive all-girls private school, but I don't know if that will help. I am taking the PSAT in the fall and will be submitting those scores. I also plan on being a neurosurgeon.
Do you think I still have a chance of getting into Andover and other competitive boarding schools, such as Lawrenceville and Hotchkiss? What would help me improve those chances? Thank you for your help!</p>