Btw OP...... You might want to look at the difference between inferior Se vs inferior Te.
Our inferior function is how we act when we are feeling stressed. INFJs use inferior Se while INFPs use inferior Te.
INFJ's stressed reaction: One common way to tell that INFJs are feeling stressed is when they limit their options to just one. They might insist there is only one solution to a problem. Others become extremely critical or angry, often blaming people for their troubles. Some INFJs accuse other people of failing to help, while some will make even the simplest task unnecessarily complex. There can be paradoxical behavior: some INFJs might extravert a great deal, saying harsh things with little regard for the feelings of others. In contrast, some INFJs can become rather introspective and shut themselves off from the world or outside help. Still other INFJs set unrealistic goals for themselves, which just makes matters worse. Finally, some INFJs might eat or drink too much.
INFP's stressed reaction: Some signs include losing confidence in their self-worth or contributions to the group, having unrealistic expectations from situations or people, and seeming to be moody and hypersensitive. Some INFPs seem to carry the weight of the world on their shoulders, or become discouraged or lose heart. Others appear to take on the role of martyr, acting as if no one loves or cares for them. INFPs have reported feeling cut off from all that is important to them when they are feeling stressed.