You need to have the courage to express your opinion:
"The person who has no opinion will seldom be wrong."
Strength doesn't come from what you can do. It comes from overcoming the things you once thought you couldn't.
Anyone can give up, that is easy. But to hold it together when everyone else would understand if you gave up is true strength.
So be miserable. Or motivate yourself. Whatever has to be done, it's always your choice!