Try this on and tell me what you think:
Emotional insecurity or simply insecurity is a feeling of general unease or nervousness that may be triggered by perceiving of oneself to be vulnerable or inferior in some way, or a sense of vulnerability or instability which threatens one’s self-image or ego.
I pick up on the key word here for me is vulnerable or inferior. Those who have comfort with themselves have nothing to defend they have some degree of humility and vulnerability. I would also guess that emotional insecurity stems from the family of origin and may have something to do with the social relationship with mom and dad or whoever were the prime caregivers at that time of development.
How might this manifest as an adult?
I am not enough
I don’t fit in
I attract toxic and abusive people
My work or effort is not good enough
I am afraid of loss
I fear failure and disappointment
I am afraid to say how I feel
If you knew the real me you would not like me
So do I relate to some of the above? Yup fewer than I did in the past. Heal you first and feed yourself first every day all the time.