Hi JustforFirst,
Please do not worry, I'm sure every problem has a solution.
Also please don't be scared about talking to your parents, though they may be initially disappointed, they will definitely be there for you and help you. please talk to them about your struggles, they will understand.
Are you sure you won't be able to continue at Warwick? Your parents will be able to support in talking to the university about your options.
You've got excellent grades for A levels, The UCAS cycle for 2023 entry is now open so you may be able to re-apply for university.
I don't know much about the application process, I'm sure someone more knowledgeable than me will be along soon to point you in the right direction. But in the meantime, take heart, in the large scheme of things, this is just a minor hiccup!
Cheers1