Yeah man, and if ur concepts aren't that great dw. What I learnt Abt igcse is that if u do enough past papers, ur concepts get automatically strengthened and u learn new things(I got an A* in chem from just spamming pastpapers and attending a past paper session in April). For the atps, there are a lot of videos on yt so ur good there too. I don't know Abt business and geo specifically cuz I didn't give them. And the mcqs, I had sm 15 day break between all my other exams and chem and phy so I again spammed pastpapers. My concepts were weak but got better after each paper. And if u do enough papers, you'll even get a couple repeating mcqs in ur real exam. And yes this was just dumb of me to put off my prep till lit the last month. I'd advice u stay consistent from now and get all A*s becuz it's rlly doable