'And if you're a current university student, what advice would you give to those who start university this year?'
Ex-uni student: My advice:
Join a society that you are passionate about. If the uni doesn't have a society you are passionate about, use Canva to draft up posters and ask the Student's Union to display them, asking people to sign up to join yours.
(an example: Wolves had a music society, but it wasn't specific in my favourite genre)
Introduce yourself to everybody at uni in the first week, even if it's awkward.
Go to the first fresher party of the week, to get a feel for it. If it's not for you, that's okay.