Ag sir

Guys me ag sir se physics kar rha hun 11th 2023-24 vale lectures se aur 12th 2024-25 vale se (sarvam vale mereko smjh nhi aye purane lectures shi Lage) but reddit pe kuch log khe rhe the ki sir ke purane lectures relevant nhi hai sir low level ke questions karate the ab fomo ho rha hai to kya ab MR sir pe shift mar jau??