I have around 4 weeks until my first AS exam, and I'm really worried I'm going to fail. I've already resat the first year of A-Levels because of problems at my first sixth form. I'm doing AQA Physics, Edexcel Maths and OCR Computer Science, if anyone has any suggestions about how to revise for mainly Physics and Computer Science - it would be greatly appreciated. Maths is the only subject I feel really confident in. I have to get at least a D grade to do year 2 and I don't even feel like I'll get that :/