Do my high school marks matter?

[Personherebb9]

Which city do you live in now? I recall reading you were in Capetown and now in a different city? How far is the commute and the time it will take you if you bus?  I recall UCT having an online high school option for FREE to anyone in grade 8-12, it's like a learning system people can use (similar to Khan Academy).  The free version is a great homeschooling option, but no grades or any support, there are however plenty of assessments and it is self-paced.  The pay version is expensive at $230 USD!

I moved to Pretoria, which is at least a 12-hour drive away from Cape Town, so commuting is definitely not an option.

And since no other South African uni offered me a scholarship or truly any form of financial aid, it's definitely not a possibility. Also trust me when I say YOU DO NOT want to make private loans through banks to fund your education in South Africa, you will never pay off those loans. My cousin made a private loan through a bank a few years back only to fund 1 year of his university. He's now 30 and still paying monthly fees from that 1 year loan.

That's why I'm doing TESU instead of in-person. Plus if that means I can leave this country within 2 years and actually make a live-able wage, why wouldn't I? Realistically if I ace my plan; I can graduate at 19 with two bachelors, two associates, multiple certs all while getting some form of work experience. I'll be much further ahead than most people my age and then I can actually travel and do things that I would like to do while I'm still young.

Coming back to the high school marks, as I've said I've been a fairly good "model" student all my life, consistently being in the top 90th percentile. It's just that when I found out that my dreams of "university life" were shattered, my mental health took a hit and I had and still have no motivation to study for these final exams. I'll be done with them in 3 weeks time, I have around 8 exams left over the next 3 weeks and then I'm done. At this point I'm just hoping for a passing grade, but even if I fail, it's not the end of the world. I can just rewrite those subjects next year March, which would be before I apply to TESU anyway, so not a massive train smash. I wrote my first *Final* Maths paper on Friday (which is why I made this post), it didn't go well... I struggled on a lot of questions and left at least 1/3 of the paper blank. I'm writing my second *Final* Maths paper on Monday and I'm stressed, because I don't feel prepared for that either.

Here are the contents of both math papers for reference;
Paper 1: Algebra, Series and sequences, Financial Mathematics, Functions, Calculus, Probability 
Paper 2: Statistics, Analytical Geometry, Euclidean Geometry, Trigonometry 

I usually tend to do better in paper 1, since I feel more confident in those subjects, but yeah no after Friday it's safe to say I can't be hoping on any good marks for that paper, meaning it's all up to paper 2 and the only things I'm decent at there is stats and analytical.