Stickers

We have these stickers on the windows to our soul. I have tried to remove mine. They include such fabulous labels as, Idiot, White Trash, Bitch, Whitey, Cunt, Stupid, Woman, Dumbass, Arrogant, Weak, Inadequate, etc. I have scraped, wiped, and scrubbed but they have left this residue that makes my vision blurry and not trust worthy. Not just anyone is willing to hurt you but without good vision, how would you know? Is it worth the risk and if so how do you prevent yourself from seeing old optical illusions?