The go get a degree to earn more money is a great big myth in 2024.
You've got two 13 year olds. One of them is conscientious and works hard in school and on their homework and exam revision. The other one tosses school off. Which of those is more likely to go to uni?
Which of those is more likely to get employed, promoted, to make a success of any business that they start?
If you have fragile mental health, you could be given an unconditional offer to study medicine at Cambridge and you're chances of success would be highly iffy. Due to the relatively high chance of you dropping out.
If you have fragile mental health, and you got a 1st in Economics from LSE, your career prospects would be less rosy than a clone of you that had iron cast mental health that never went to uni.
As a general thing in the UK, people over-estimate the importance of academic achievements and under-estimate the importance of personal qualities; when it comes to earning money and having a great working life.
If it looks like you won't be able to jump through the hoops of certain corporate employers, eg investment banks based in the City, try something else as a way to earn money.
In 2024 there are certain in demand skills. These are a mixture of high tech stuff that most people don't understand, and traditional trades such as plastering and plumbing that uni students tend to have no interest in. As well as the big skill of starting one's own business.
For the high tech stuff you can generally get a starter job in them with 3 month training, which can be self training with a bit of generating your own experience. From there, within a year or two it's common to move up to very good money earning. All without a degree.
For the traditional trades it will - probably - take longer to build up to high money earning, but at least you're earning money from the start.
For starting your own business, your first attempts may fail, but the potential rewards are greater than any other career route.
For you personally, I'd say that going to UEA is worth it. With you giving a very high priority to working on your mental health.
Because it seems that if you didn't go to UEA, there's too high a chance you'd sit around as a doley or be a minimum wage slave for 3 years. If you've got the drive, the determination, the enthusiasm, the persistence, the ambition to prove me wrong you shouldn't go to uni; you should take the non-uni route to starting your working life.