Im 17 and in high school I wore some of my Dads neon ear plugs to the prom. I have to block my ears before I flush a toilet, and when I work the fire works at the beach I have to wear both the neon ear plugs and a set of "police level gun shooting ear muff things" over them.
Ive never even brought it up in ounsling since I have some other bigger problems... its embarassing but try to do what you need to. If you need ear plugs... use them. If ur embarassed buy the clear ones that are for swimmers. You could also see if your school offers free couseling options.. or talk to a school nurse
Hope this helps.