Story in Simple past gesucht !

Title: Was it a dream?

Last night I gotta dream, im not sure but apparently it was one.
I was at school sitting on my chair and watching straight to the table. Suddenly I felt a requirement drinking my beer which I got in my schoolbag; It was a typical Bavarian beer with a great flavour. After I`ve drunken my beer I saw my teacher Mrs. Wild becoming green like a hulk. I was scared about this new situation and stand up. While standing up and going to my teacher I twisted myself and felt down because i was too much drunken. My classmates had to pull me back because I could injure someone, especcially my teacher who looked like a monster for me. They strapped me on the strecher and brought me to the hospital; later I`ve recognized it was a psychiatries and it wasnt a dream.