okay, call a doctor, sell him some cookies, then use the money 你 saved with Geico to reincarnate the character okami, and as the cat is destracted 由 it saving the world, 你 grab the cat and throw it out of your bedroom door.
Get a 扫帚 to scare it, I don't like to do that but I one time when my cat got under my dressers and was rustling papers I had no choice because I wanted to sleep.
Hiss at her. Just kidding. I'd grab a stick and just tap her with it, either she'll get annoyed and keep doing it until she leaves, 或者 she want to play with it. If she want's to play with it try to lure her out with it. I'm pro at this because we have three 猫 and two of them 爱情 my room for some reason.