I'm going to trash all of my roommate's dishes.
What kind of problem are you having with your roommate that has brought this on?
She upsets me because she's very loud. She wakes me up every morning.
It can be aggravating to get woken up every morning by a loud person, but throwing away their possessions is a terrible reaction to that. If you're having a problem with a loud roommate then you need to discuss it with them in a civil manner. If you throw away their possessions, they're only going to react with more hostility.
I don't care. I'm having a tantrum.
I can understand that you are very angry at the moment, but I have to insist that you don't take this anger out on your roommate just yet.  Find some way to harmlessly release your anger, and then talk to your roommate calmly, but firmly, to let her know that her behavior is unacceptable.  She might not even realize that she is being too loud that early in the morning.