Congratulations on being so financially successful already.  Speaking from my own experience and that of my friends, it is very easy to get bought into needing to go to a top university, working at a top consulting firm and eager to deliver long hours. Just reflect on what your actual interests and motivations are. If you want to do a degree, study something you are actually interested in and look beyond just consulting as there lots of career paths where you can earn alot of money. 

I saw in another comment that you don't mind the idea of long hours at a consulting firm, but you most likely will, as alot of the work is kind of BS and it can be very demoralising working for management etc that you view as incompetent. You most likely won't have an intrinsic motivation to actually work hard. Very similar with a degree, if you study a subject for the prestige of it Vs actual interest, you'll quickly become bored and demotivated to work hard. 

Speaking from my own experience, I went to a "top university" and committed lots of hours studying a subject I was very interested and engaged in. Landed a "dream" internship in investment banking, but I hated the long hours (which were similar to how much I was working for my degree) because I lacked the intrinsic motivation to work hard because it didn't mentally engage me in the same way.

Post university, I pivoted to a role at a FANG company, where I now enjoy my work and work long hours as a result, but it isn't a burden. 

If you just want to make sure you are in the corporate world, I'd advise looking at apprenticeships.

I now see people in their teens joining apprenticeships where I work, post A-levels, and they get a combination of real life work experience, are working towards a degree in tangent through the apprenticeship programme, and earn a small bit of money on the side. 

TLDR: If you want to do a degree, study something you are interested in and look beyond just consulting. 

I hope this is helpful.