Is there any truth to them?
If not, then let them go.
If they are, then either learn to respect that is part of who you are or change it if you don't like it.
There's positive affirmations. I used to take index cards, write them on them, put stickers or art work on them, pretty them up and stick them in front of the toilet on the wall. So every time I'm sitting there with nothing to do, wa-la.
I also have one in front of where I wash dishes.