When I left high school I loved maths and stats, so I started a degree in Actuarial Science. Was totally bored by it by the end of first year - could not be motivated at all by it. There was no semblance of problem solving, it was primarily just applying a few types of formulae to a situation. Sometimes normalizing some input, sometimes adjusting something in a tiny way - but essentially the same stuff over and over again. Looked at past-papers for years 2 and 3, and it didn't any more interesting. I realized towards the end of first year that the idea of doing an entire degree and then 4-10 years doing board exams just seemed a sort of narrow path to take - few alternatives to swap to once you go too far. Ended up changing to Computer Science.