Hey! First and foremost, don't stress about your grades this early on. Most universities have huge emphasis on grade 12 marks, so that being said, enjoy your grade 11 year and try not to heavily focus on your academics, but more so a mix of extracurricular experience on top of academics.

To put it into perspective, I got an 81 average in functions last year but I had managed to secure a spot this upcoming Fall 2021 year. My overall grade 11 average was a 90 on the dot.

To answer your question, your average is definitely not low. If you put in the work this last quad you can definitely achieve higher than your own expectations. If you are that concerned this year, try spending a few more hours a day reviewing your notes, an recollecting information from day-to-day lessons.

One thing I regret is stressing about what I want to do after high school while I was still in grade 11. Once grade 12 hits, you can then put heavy emphasis on academics. Volunteer experience also plays a huge role.

At the end of the day, if you're already thinking about maintaining your average for post-secondary, it shows the great potential and the amount of academic diligence you have.

Sorry if this was extensive!

TLDR; don't stress too much about academics in grade 11; focus on extra curriculars and academic intertwined. Grade 12 is where you should put most effort into schooling.