It started during high school and progressed for over a decade into my early 30s.  My doctor said it will never go away because it's deeply ingrained into my psyche and part of who I am now.

I did make some coping mechanisms, for example over the years I have given it an identity and personality in my mind and interact with it all the time as if it's both my friend and enemy.  I don't know what I'd do without it actually.  

Sometimes I lose control and still get uncontrollable head tremors, fight/flight response, palpitations, sweating, body shaking, etc. and I don't know how to stop that - it's really embarrassing during work virtual meetings (have to keep webcam on).

Is this normal for anxiety / panic disorder to remain permanently if you waited too long?