I'm going to be kicked out of university soon. I haven't told my parents
Why would you not tell your parents about getting kicked out of school?
If they find out, they'll cut me off financially.
I can understand your fears. It's wrong not to tell your parents that you're flunking out of school. Maybe they will help you with a tutor?
Probably not, they don't want to spend money on their loser kid.
They will still find out and they would be more angry then. Ask for help, their your parents, they want you to succeed.