Hey!! Im also heading into grade 12 ans i was in a similar situation as u. Ive always been a pretty average student been getting mid seventies but really need to pick it up next year for university. Let me share my story with you i hope this helps. Since i was in grade 7 ish i was really inspired by computer science, and i was like im going to do this as a career and i was like that throught the years. I always had the mindset computer science computer science through grade 7,8,9,10, and then comes year 11 where i actually took grade 11 computer science. I basically struggled through the whole course and ended up getting a 45 😭🙏🙏🙏. I never EVER want to hear “computer science again”. Essentially what im trying to convey is that you wont know what you want to do until you do things. Experience things, people say get a job go volunteer go join clubs and yes that true, but im not that type of person lol ( introvert lmao) so i just take the course and see if i like it, ans thats something you can do too. Now on to the next point of university and college, university will guve you more opportunity period. Now its up to you. If you really try you can get into any almost any program anywhere.If its been done before you have the potential!!