I achieved a Distinction merit(DM) in engineering and got a U in maths A level and a U in physics As, my school is not letting me retake so I am considering on retaking privately but my school is telling me to go through clearing but I don’t want to go to a bad university, I want to study maths and computer at a good uni so I was considering in retaking maths A level and do economics A level, can anyone give me some advice.