im in year 11 atm and i have no knowledge of all of the gcse content. i didnt focus very much in classes which i really regret now and even when i didnt focus i was hating on myself every second of it, but even the bits that i did focus on, i just can't remember now. i dont know what to do but im very stressed and embarrassed about it. should i redo all of the gcse content and how? do you recommend any websites or videos? thank you