Are you registered as a carer with your GP?
Have you registered as a carer with your local council social services?
If you’re a young carer then it’s a good idea to do both (and is really quick and easy to do). Not only will you be able to prove that you’re a carer but you’ll also unlock access to a bunch of additional support including making sure there’s some backup for the person you care for if you move away or aren’t able to care for them when you start your degree.