What Are My Chances at Schools Like Stanford, MIT, and Notre Dame?

Hi! I am currently a junior and I want to go to one of the schools listed above. I know some of this stuff isn’t the best, so please be honest! Thanks!
My test scores are pretty good, but I know they are not the best. I have only taken each once, so I might try to take them again and raise each of the scores (and get a “superscore” going).
SAT: 2050
CR: 690
M: 700

W: 660

ACT: 31
R: 33
W: 33
M: 29

S: 28

Overall, I am not too worried about my test scores. My GPA is what I am very concerned about. I went to a regular high school for two years and I was bullied very badly and my grades suffered from that (Freshman: 2.9 UW, Sophomore: 3.0 UW) after Sophomore year, I transferred to an online school and currently have a 4.36 W/4.0 UW (first half of junior year only - not 100%). I have my schedule for Senior year all worked out and have 5 AP classes on top of the 2 AP’s and one honors I have this year.
I do have a few things that I have going for me though. I am fluent in 4 languages and am working on a 5th. I am part of the French National Honor Society. I have medals from Russian language competitions. I have also been to Russia and studies the language there for a month, same with Costa Rica/Spanish language. I am part of the dance club, baking club, and the president of the book club. I have varsity letters in tennis (2 from my years at a normal high school). I have over 300 community service hours (working at marathons/triathlons, habitat for humanity, working/putting together haunted houses in the fall, and tutoring kids/teens in english and math - basic, pre-algebra, algebra, geometry, and precalculus. Aside from tennis, I golf, dance (ballet, pointe, and tap), ride horses, and run (not with a school, but I probably could if I wanted to).
By the way, I would like to major in either Computer Science, Math, or both!
I know my GPA is going to hurt my chances, but what do you think? Be honest, and please let me know if there is anything else you think I can do to make my résumé stronger!

How do you have a 4.0 GPA if you did poorly the first two years of high school? Is that your cumulative GPA or just the GPA from online school?
Frankly I think you don’t stand a chance for MIT, Stanford, and the like.

That is just my GPA so far this year (first semester) from my online school. Sorry for the confusion.

Very slim for MIT/Stanford
You said you are not worried about test score, but you need at least 700+ in ALL sections, and many MIT’s applicants have at least 740+ or so. Also, your GPA is not good for these two, as you already know, which is why you MUST ask your counselor to talk about it in ROC

Also, if you like math, why don’t you have math-related activities like AIME/AMC/Mu Alpha theta competition? Apparently MIT is heavy with stem students and your current math score and activities are far from competitive enough for MIT applicants. Also, did you not take SATII yet? You need one math and one science test. Without it, you are not even eligible for admission.

Similar goes for Stanford. SAT, and weak EC will grab you altogether.