My DS had the most appalling year studying for his AS's. I remember leaving parents evening in floods of tears because teacher after teacher said he wasn't even doing the bare minimum. One teachers said he shouldn't have stayed on at sixth form as he was academic enough. I met with the head of sixth form and he was concerned that DS would fail the year and there was no possibility of retaking the year.
I remember landing in New York during the Easter holidays to a message from his English lit teachers saying he hadn't handed in his course work and she saw no evidence of him having done any work. This was after he promised me faithfully before we went away that 100% of his coursework and homework had been handed in.
This is hard to believe, but what seemed to change his attitude completely was going to a couple of university open days. He absolutely fell in love with the idea of living on campus away from home for 3 years!
After the abysmal parents evening we sat him down and agreed a really strict timetable and he was under no illusion that he would have to work incredibly hard. And for the first time ever he did, he worked 5 hours EVERY evening and 8 hours Saturday and Sunday.
I have to say we did give him tough love at the time and it almost broke our mother son relationship.
His AS results were ACC (the A being English Lit)
So it is doable but my gosh he's going to have to work hard and if he doesn't buy into it that's just not going to happen. They will start work on their UCAS applications as soon as they go back and his AS results will be taken into account they will have a baring on deciding on a course and uni
His A2 results were ABB and he achieved a 2:1 at university.
Good luck and don't get too disheartened .. My horrid teenager is now 24 and running his own company, which he started from nothing and is now travelling the world. He even gave a talk at his old sixth form recently, which I did find quite amusing.