I feel like I want to cut my toxic best friend off.
What made you feel that your best friend was toxic?
A some point I got tired of her shit and I made a huge effort to get rid of her. And she sucks, she lied to me a lot and was just a terrible friend all around
Friends should be supportive of one another, so if you feel that your friend was being harmful to you, despite your efforts, then you would have been justified in cutting her off.  If people are actually bad for you, then you shouldn't feel any obligation to stay around them.
Yeah, I did what I had to do. I can't believe I wasted so much time on that crazy bitch. She's fucking nuts.
I am glad you've moved on and removed this person from your life. They weren't a good friend to you and you deserve better.