Repeating a year?

hi guys I'm in a bit of a situation right now, I've just received my As results and didn't go very well at all. I did maths,physics,economics and chemistry. I got a C in maths, C in physics, D in economics and an E in Chemistry. I know it didn't go well but I'm determined to do much better at A2. However, my parent s are pretty adamant I have to retake the year. I'm really not keen on the idea. I was just wondering do some top universities such UCL, LSE, Durham etc not look at you as this is a repeated year and second year of As. I think it will be a bit pointless to repeat the year and possibly achieve A grades then these universities to say no as this is the second year. Or do you think I should just go to A2 and try my best.
Thank you for taking time to read this and thanks for the replies.