I want to do mechanical engineering.

Hey so im currently doing alevels (in my first year) and my subjects are maths, physics and accounting. My grades in olevels were 7A*s. As of yet I'm doing pretty good (getting almost straight A's in every test/exam) and with cies in less than a month I'm pretty confident. However the problem is that after alevels I wanted to do engineering and I was told that I only needed maths and physics for that(considering I wanted to do mechanical engineering and not CHEMICAL) , but it's now come to my knowledge that the one of the requirements for the uni I want to apply to (uoft) is that you need chemistry aswell (for any engineering course).So now I'm stuck. After my olevels I really didn't want to study chemistry again. To me physics was interesting and it was pretty easy... Bio wasnt really interesting but it was easy and chemistry was neither interesting nor was it easy so I hated it, nonetheless I still managed to pull of an A*. So now I have 2 choices I can 1.continue with the same subjects and then do finance/accounting in uni (which i had as backup when I was starting my alevels... It's the reason I chose accounting) or 2. Give my cies this may/ june for the 3 subjects I have now.. Then give my Chemistry AS paper in the oct/nov session and then continue w all 4 subjects in A2 and hope that I'll be able to keep my grades up (which idk if I will be able to because I've heard every single chemistry student complaining about how hard It is). And then in the end get into uni and be done with chemistry forever (because correct me if I'm wrong but chemistry isn't a part of the mechanical engineering course right?).
I've been wanting advice forvever but I just couldn't find the right person or platform and so I'm praying someone replies 🙏 THANK YOU IN ADVANCE.