can i get an A in bio, chem, maths?

So right now, I'm watching AQA allery chem vids and reading the cgp chem rev guide and then doing PMT topic-wise papers for each topic and then doing the same thing for bio (cgp rev guide and then topic-wise papers), for maths, I'm doing the textbook mixed exercise questions and then doing the topic wise questions and I've left exactly three weeks for full exam paper practice, can I get an A?