I feel like this situation might appear stupid or like it has a straightforward answer, but I'm genuinely lost. I was a Business student at A-Level and planned to study business analytics. I took a gap year to take A-Level Maths because I realised that it would be important for some parts of the course and started the basics of programming since I knew that programming was used to work with large amounts of data, which is again a part of that kind of course. I applied to Business Analytics at Southampton, and Information Management for Business at UCL and got offers from both. However, during this time learning maths and programming, I really grew a LOVE for electronic engineering, computer science, mathematics and all things related. The more research I did, the more a realised just how well a computer science degree would fit me and how much I'd love it (whereas business was more of a.... salary-based interest?). I ended up contacting Southampton and asking to change my offer to computer science and they were so helpful and did just that for me. UCL on the other hand, wasn't so willing and refused after the first email. I know that Southampton has quite a good reputation for Electronic Engineering and Computer Science (from what I've heard) but despite being a business course, it's hard to let go of UCL when it is such a huge deal for me to get an offer from them personally, since I never thought I'd be good enough for them and applied as an extra "what if". I like Southampton and I really found a passion for Computer Science and everything that comes with it (though I do fear that my maths won't be good enough since I learned A-Level maths so quickly), but the prestige that comes with UCL and the future that I could potentially get from going there and doing that course, even though it's not really where my passion is, seems like something that I would have to be stupid to just throw away. I know all of this may seem stupid, but it stops me from sleeping thinking about this decision. Will I regret turning down UCL to study Computer Science at Southampton where my passion is? Would my future prospects look considerably worse? I'd just love to hear some opinion on this since I'm completely lost myself.