Grades and GPA

Hello all!

I am a junior and I'm actively thinking about colleges and where I might apply as well as how my application might look to some of my dream schools: UPenn and Northwestern. I have taken some AP classes: Calc BC, Comp Sci sophomore year. This year: APUSH, Psych, Lang. I got an A in Calc BC and an A- in APCS. Based on my grades so far, I should get an A+ in APUSH; an A+ in Psych, and an A or A- in Lang (my teacher is VERY harsh on grading). I did get one B+ in my freshmen year as a final grade in Spanish 3. Other than that, I've always had As or A+s. My GPA is currently 4.17 unweighted and I think 4.2 weighted. I got a 1550 on my SAT on the first attempt as well(not planning on retaking). In terms of extracurriculars, I've pioneered a summer tutoring club for kids who struggled during the COVID year. I also have contributed to some medical research papers (I aspire to be a surgeon and go into pre-med). I also got 3rd and 2nd at state level computer fairs for website design (one of my hobbies). On the research note, I also started an out of school club for other juniors who were interested in research, and we're all learning virtually from some trusted medical students. How do you guys think I stack against other competitive applicants? Being the first kid, it's all sort of new to me and I want to make sure I am not missing anything. Thank you all!