This is a horrible saying! Everybody is good enough to be worth the truth! No wonder we have thousands of people with self-esteem issues. If somebody lies to you, it's the liar's fault, not yours. Saying you're not worth the truth puts all the blame back on you when you really weren't the person to lie in the first place!
The INFJ make up has no function that can easily analyze their personal feelings. Ni processes data that Se provides. So all the INFJ has to do is find a way to get their emotions into the outside sensory world and feed it to their Se. This can be done by writing them down and reading them again.