Gpa 3.7 unweighted, Most rigorous schedule possible
3.83 Junior year(upward trend)
I go to one of the most competitive high schools in New England and my gpa is low because i struggle in spanish( b’s and b-'s).
Sat- 1550, 800 math, 750 english
Sat Subject Tests-
800 History 800 Math Level 2 720 Physics (Will Retake)
AP Scores
APUSH-5
AP Physics 2- 5
Extracurricular- Youth Program 9,10,11, and 12
Math Team 9,10
Babysit 10 year old sibling 3 hours every school day since 10th grade 10, 11, 12 (This is the reason I have not been able to join many extracurriculars)
50 Volunteer hours at Newton Wellesely Hospital
Harvard Summer School course in Physics
Should have good essay and recs
I visited and will apply OOS
Bump
Bump
Anyone?
Your grades are just a little bit low, but your high test scores and rigor might make up for that. I think you have a good chance.
Male or female?
Male. 
Here are some of my thoughts, for what they are worth:
First, you may be able to get an idea of where you place relative to recently admitted students by looking at the Georgia Tech Common Data Set: Part C9 of the CDS gives the median 50% for both SAT and ACT scores, as well as the percentage of the entering first-year class falling within certain ranges of SAT and ACT scores; Part C11 gives the percentage of entering first-year students falling within a range of unweighted GPA on a 4.0 scale, and Part C12 gives the average high school GPA of first-year applicants.
The CDS also tells you, under Part C7, that GPA and the rigor of your high school record are “very important” academic factors considered for freshman admission, whereas standardized test scores and your application essay(s) are “important” academic factors considered for freshman admission. Extracurricular activities are considered as “very important” non-academic factors. When I attended an Open House at Georgia Tech this past February, the Admissions Director, Rick Clark, echoed these points of emphasis — and primarily that GPA means more than standardized test scores to the Georgia Tech Admissions Office. If your lower grades do not relate to the areas that you wish to study at Georgia Tech, that may help you; but your odds are still longer than some others have. Your test scores are definitely good.
If you are a URM, then that will be in your favor; being male might work against you, however, because I think that Georgia Tech has been admitting more females in the past couple of admissions cycles, perhaps due to a desire to ameliorate the male/female imbalance in the undergraduate population, even though Georgia Tech still usually admits more males than females.
Application as an OOS student is tough, because about half of the applications to Georgia Tech come from domestic OOS students, but domestic OOS students make up roughly 30% of the undergraduate student body (according to the numbers I was given by the Director of Admissions last February). I believe that the acceptance rate for domestic OOS students is around 23%.
I notice that you have posted in some of the Northeastern forums; I think that your chances of admission there are probably better than at Georgia Tech. I’m not saying that you won’t be accepted at Georgia Tech; but your chances as a domestic OOS student are just not as good unless you have some admissions “hook” such as URM, D-1 athlete, disadvantaged socioeconomic status, etc.; so don’t have unrealistic expectations.