Schools try to rush you through the education system and into higher learning for their statistic quotas. I have a friend who finished school, moved to Australia for 2 years, came back and landed herself a well paid job in the oil industry and she gets £1,000 bonuses every now and then. Most of the rest of my friends went to uni and are nowhere near getting to that level of success. Uni isn't the be all and end all of life, it's just what school and your parents have told you to work towards. So it's important to study things that you like so that you don't make things hard for yourself. No point studying maths if you're crap at maths and you believe that you're crap at it. Study something else that you are good at! You seem intelligent