Umm... Chance me? Questions for UCF, Purdue, GA Tech, & U of FL

Hey, Quebec high-school junior & aspiring aerospace-engineer here.
In writing this, I’ve come to realize how painfully true this is:
“Advice is what we ask for when we already know the answer but wish we didn’t.” --(I have no clue)
…Well, anyway, any feedback would be appreciated. Thank you in advance. Here’s what I’d like to know:

  • If I’m an American, but went to high-school in Canada, would I be considered an International Student in the eyes of an American university’s admissions committee?
  • Would I need to submit a course-equivalency-assessment by an accredited organization with my college applications?
  • Is it true that QC high school credits are worth more than US h-s credits? (In other words, is my GPA higher in America than in Canada?)
  • Would being a Florida resident & being born there help for FL universities?
  • Would not having ANY ECs mean an automatic rejection if I applied to the above-mentioned schools?
  • Could a killer application and stellar SAT, ACT, and SAT Subject Test scores, as well as a brief explanation of why I dropped the ball a bit sophomore and junior year, compensate for an average GPA?

I’ve always known that I wanted to go to university, but was told never to worry about it because I was a “very good student”. (Apologies for sounding so immodest.) Up until sophomore year, at least.
My Dad didn’t want me staying after school, and I couldn’t afford to be on the sports teams or in cadets (etc) anyway, so I never really had the chance to beef up my ECs. There weren’t really any clubs at school, either. I was in Student Council for one year, took all the “enriched” & science-option classes available, took music (class) for four years (and played in a couple of shows), and was certified as a “peer-tutor” (even though that program never got off the ground), but that’s about all I can say. I’ve got a summer job at a local museum at the moment–my first job–and I’m planning to complete my 12th grade online this summer as well (instead of going to CEGEP, which is, in QC, a mandatory two-year “pre-university” program). Doing my grade 12 online would allow me to finish high-school quickly, and bring up my GPA a bit before I would start applying to universities for the 2018 spring semester as a freshman.
I’d never had a clue what I wanted to study in university/“do with my life” until about three months ago. Now that I DO know, I feel like it’s too late and that I’ve screwed myself over. Worst case scenario, I figure I could go to a community college for a while, join clubs that I’d be interested in, prove that I’m “passionate” about engineering and that I can do well academically (once I feel like I have a solid goal), and THEN apply to a four-year university.
That being said, though I do understand the pros of going to a community college–given the situation I’ve put myself in–if at all possible, I’d love to just start at a four-year university and stay there until I get my degree.
(I’ve realized that I’d love to specialize in astronautical engineering, so after my bachelor’s, I thought I’d transfer to the University of Southern California, which has a flagship “Astro-ENG” master’s program.)
Sorry this spiel was so long… So what do you guys think? Do I have a shot at any of these schools? Or any other schools with a strong undergrad aerospace program? Or am I just asking strangers to confirm that applying as a freshman wouldn’t be such a good idea right now.

Concerning ucf…I think it would be prudent to talk to admissions directly. Look up the number on the website and call. Keep in mind that students usually answer the phone (gatekeepers…lol) and you should “insist” to talk to a real admissions advisor because your questions are fairly unique. Perhaps they can set up a scheduled phone appointment with an someone knowledgeable in this situation.

Thank you very much! I’ll give it a try.

I worry that wrong or incomplete info will set you back.
Ucf has an amazing aerospace program!!
If you decide on ucf and have general questions about the school, ask…my ds and dd attend there.
Best of luck!!!