I'm going to kick out my best friend and cut her off
Why are you going to cut your friend off.
I don't care about her anymore, she's so annoying
If you think you need to, then you're well within your right to kick her out of your house.  That being said, I'm sure she's going to be upset about you cutting her off, which is understandable.  Hopefully you two can patch things up!
That's not going to happen.
I am sorry you two can't patch things up. Hopefully you can find a better friend in the future.