>>14046164this is something I can actually help with. I self studied scottish higher maths (less difficult but still comparable) in about a month and passed with an A, and that was with really inefficient time management (I spent 80% of my time autisticaly copying notes and procrastinating) and block learning, although this was over the christmas break so I had a lot of free time to begin with. If you manage your time well you can absolutely crush a levels by july.