I would have returned to school having taken my A'levels and changed to Sciences in order to go on and study medecine. Curiosly I rediscovered my O'Level results recently as much to my frustration they were required by the University of Brighton in order to enrol on their PGCE. I have an As in Biology, as well as an As in each of Maths, English Literature and Geography. I gained Bs in English Language, Additional Maths and Physics. I didn't 'get' French or Chemistry but managed a C for each all the same.
Years later, had I listen to my Mum, this would be 20 years ago after a hiatus with the bursting of the Web Bubble in late 2001, I would have taken a PGCE (but not in my first degree), or taken a portfolio in to show a contact (a fellow student from the 1950s University of Durham Art School then a senior lecturer) at Brighton or Sussex to take an MA in Fine Art. I did get so far as discsuing MA options.
Had I listened to my Mum ...
I did listen to my Father. I had wanted to change to study Law at univeristy. He told me I wouldn't enjoy it. He'd risen to be the Senior Partner of a Regional Firm, yet apparently had never wanted to be a lawyer - if he hadn't liked it how could I?
Life can be a mess - the advice you take, the advice you don't. I wonder if you know how you are going to behave regardless of what people tell you when you ask them.