What should I do if I want to kick my roommate out?
Why would you kick your roommate out? What did she do?
She is fucking gross, she never cleans up her mess
If their presence is that much of a bother, then you are right to ask them to leave. Just make sure you don't regret it later.
WTF I don't like regret. But I don't like cleaning either.
It can be difficult to live in a house with someone who is messy. You can always try talking to your roommate and let her know that it's her responsibility to clean up after herself.