Resource Help!!

Hi, I know there are a bunch of resources linked across Reddit, Discord, and so on. But, I'm asking if someone could link the best up to date resources for Physics, Economics, Math (Statistics, Pure Math 1, Pure Math 2 and 3), and ICT.

I'm doing A2 CAIE. I'm really stuck finding good resources, that help and are not outdated or websites that were shutdown. Please someone help 🙏🏾.