I'm starting to get teased by my classmates again

Both in elementary and middle school I was teased for my physical appearance and also for my dyslexia... now I'm in high school and I'm starting to be teased again, for example today they called me gobiln and other offensive names regarding dyslexia that I won't repeat... my teachers don't do anything about it not even with the intervention of my parents... Do you have any advice for me?