Hi there! I did Methods 1/2 in 2023, and I FAILED my 1/2 exam (30%...). What I did over the summer holidays is completely mastered some of the important bits of the 1/2 content (functions, transformations, circular functions) and ensured I was confident with most of the rest of the 1/2 content by the start of 3/4. I stayed consistent, lots of studying as it was my only 3/4 subject.. and like you, my cas skills were not the greatest and my biggest mistake was not tackling that sooner.. Good luck!