TL;DR: Ask yourself this question when in an interaction or making any sort of transaction. Helps build a strong frame.

Be it a transaction with time or money.
When dealing with women or thoughts of women. When dealing with self doubt. When contemplating buying anything. When you are thinking about cheating on your diet or feeling any sort of temptation.

Just asking yourself this question has so many applications and is a strong foundation for your frame of mind.

Do you need this? If not then it is a want. And act like what it is. Not neccesary to achieving your goals. Never act like a want is a need. It's hard to control and contain oneself when in need of believing you are in need. Being in need affects body language, tone, and most of all mindset. Obviously.

Lessons learned: Asking this question has literally forced me to stop acting desperate. Helps me make wiser decisions. Promotes self control and discipline. Even works wonders on being authentic in interactions with others. Nobody wants to deal with a needy unauthentic acting person.

Been on this sub for a while and I wanted to contribute. Hopefully give back to others and make their path to self improvement a little less bumpy.