Needing Approval can take two different forms.
It can be either subjective or objective.
Subjective approval is my need for the approval of others for my behaviour.
Objective approval is my need to approve of the behaviour of others.
I need subjective approval to endorse my approval of my Self.
I need to objectively approve of the behaviour of others to ensure that my boundaries are not crossed.
Subjective disapproval of myself creates the need for approval from others.
It is my lack of self worth caused by my inability to see my own true value.
Objective disapproval of others causes my need to approve of others.
It is my lack of self confidence caused by my inability to allow others to follow their own, path because of my own insecurity.
My approval of my Self and others is relative to my sense of self esteem.
With enough self-confidence & self-worth, I have no need of approval either subjectively from others or objectively for others.