Originally Answered: Could I be accepted to Harvard?
Doesn't matter if your uncle is an alum, really only parents, and grandparents (somewhat), matter. Also, what most people don't understand is that legacies usually must be at the top of their class, even if their parents donate a lot of money. While legacies have a higher percentage of getting admitted, it's because they are better prepared and qualified than the typical applicant, and 85% of the typical applicants are highly qualified, but only 6% are admitted. It's actually tougher to be admitted as a legacy, they really must be at the top of the applicants. 25% of Harvard applicants score over 2350 on the SAT.
You really don't have much of a chance unless you are a top athlete, and you'd likely know by now if they were interested in you for a team. However, it's always worth applying, because one never knows until they get the envelope! But 3.5 GPA is low for a Harvard applicant, unless they are a star athlete, or have a great backstory, like homeless for years, but still got good grades, etc.
Unless you studied a lot for the SAT, it's highly unlikely you will score more than about 1900 on the SAT if you're going by your PSAT score. To score 2300 you can only miss a few questions on the whole test! 176 PSAT is low for a Harvard applicant, most would at the very least be commended (around 200), or a finalist (200 - 223 depending on the state and year).
AP classes taken in senior year, while they count, they kind of don't in a way, not as much as those taken earlier -- because they won't know your AP test score until the end of the year when you take the test and admissions are already done with. The AP test score is more important than the grade, as many teachers don't teach AP classes correctly (too easy), so students get A's, but 3 or less on the test. If one gets an A, they should get a 5, maybe a 4. That's what Harvard is looking at.
120 hours of community service is very good, but low for a Harvard / Ivy applicant. Most will have double that every year for 4 years, and that's for the kids who are not counting on community service as a way in. My dh participates in the admissions process for his Ivy alma mater and he sees resumes that are 5 Excel pages in 10 font of extracurriculars and community service. At my son's private school (high Ivy matriculation), it's common for kids to do 200+ each summer, plus more during the school year. But no one really gets in based on community service.
There are so many great colleges out there, think outside the box!