Crashed the course: way back?

Back in high school, in my fourth year, it was time to pick our subjects that would be our Highers and determine if we got a place at university.
When I picked my standard grades I was so confident I had got the right ones and my guidance teacher, ticked my choices with not a word of objection. I may have been a little quiet, to others in my classes but I had conviction.
But a year later I went through a slight identity crisis. I fluffed up my subject choices. My mum convinced my that a second language was the way forward because she knew a lady's daughter who took it. Sudoku bye thanks.
I should, in hindsight have aimed for art school but that was a wild card for someone from my background. No guaranteed career. Just a no no. I could have got my higher English and mingled with the art weirdo's.
The other part of me was upset that I abandoned science altogether when they were my best subjects. I could have done science at college. Like Chris. Oblivion. Hug a hoodie.
I should have been brave or wiser and took the year out to evaluate my life. I was making a name for myself with my sport. I never even did cross country at school, I felt like a fraud. My mum told me I wouldn't enjoy running, under the illusion that I was good at school so a nerd isn't normally good at sports. I never really fitted the mould. People always viewed me with suspicion. My coach said I was a closed book. I wore my heart on my sleeve. F£$king sue me.

Hello there.
I don't think you crashed the course just yet. It sounds like you have plenty of talent. Best wishes to you in your adventures ahead. Xo
Sans