Teenager passes 23 A levels?

i was thinking exactly the same thing i am currently studying 6 A-levels in the UK and stressed right out because it is so hard work but one of my mates in my class (year 12) went to a grammer school and she done 4 A-Levels last year because she completed GCSE's in year 10, when we leave school she will have 10 A-Levels were i will only have 6 perhaps he done this but more in each year