These things I have spoken unto you, that in me ye might have peace. In the world ye shall have tribulation: but be of good cheer; I have overcome the world.
During my college football days spring football was 10% Physical / 90% Mental. It is the same for challenging military / law enforcement training programs. This refers to how well you mentally push yourself through pain. My former coach once told me "mental is twice as hard if you show up out the shape." So the key here is to show up mentally prepared when your circumstance start to rise up so you can break every chain.
Remember ... JESUS DID IT!