LegionSteve
Motörhead
The only thing I ever did well at school was a double A* in GCSE science, and I think an A in history, but GCSEs are pointless, and everything I ever learnt in science and history they tell me is wrong.
Well you got more As than I did then, and I consider myself to be reasonably intelligent, so you certainly are intelligent.
The point of GCSEs is to get you into a job, training scheme or the next stage of education. Though if you can't or don't want to do any of those things (like some people I went to school with) they aren't much use to you.