The idealism you possess isn't meant to torture you. In truth, it's meant to set you free. It's designed to release you from the notion that this current reality is all that can and will ever be.
No matter how many people try to tame that idealism within you, you must continue to see its beauty. You must fight powerfully for the visions your idealism awakens within you. Through those very visions, you can and will transform the world.