I would frame it slightly differently: Anxieties are projections: You have anxieties of certain aspects of yourself, you are afraid to show the complete self, and just be. The degree of which varies by the level of emotional support you received in early childhood.

Anxiety is simply the fear of dying. Anything else is a projection.

In early childhood, if you don't receive the support you NEED FOR SURVIVAL, you develop strategies to manipulate the caregiver to receive that support. Broadly speaking, the first level of manipulation is anger/rage, the second is sadness, the third is resignation/depression, and in the fourth stage you develop psychosomatic symptoms.

As long as the underlying broken self image ("I cannot just be myself, or I will not receive the level of support I NEED for survival") is not addressed, you "stay a child" that needs external support, and continue to fall back into these strategies later in your life, especially in partnerships and raising children (mother/father replay).

So, yes, it is all about "self enhancement".