I can't help but suffer extreme anxiety attacks when I try to critique my own work or do art. To the point my fingers visibly shake and I can barely produce anything creative anymore. I'm feeling so extremely discouraged.

I'm currently having a full blown panic/manic episode rn.
Primarily with regards to mental fatigue, extreme anxiety and self disappointment.

Even when I try to compose myself, take deep breaths, repeat affirmations I still struggle to clearly observe and analyze art made by me and art made by others. Since I get so overwhelmed with seeing the final piece than actually nitpick details. It gets so bad that my fingers visibly shake and I get cold sweats.
I also read online that I should try facing my avoidance by actually doing the thing?

I'm just so discouraged, because I've been trying so hard to learn art for 10-12 years-ish with a dream of being competent enough to be a video game asset or video game concept artist. I've been studying art for months now and I barely still see any improvement (despite trying mindful practice as in zero music, no distractions and just trying to rotate shapes and take proportions).

I'm still struggle with the same stuff over and over again and still have trouble speeding up the process of my drawing and painting.
(Shading/anatomy/drawing from life).

While my art somehow improved on (2020-2021 from the art I did back in 2016-19. (I began to find improvements with how I begin to draw figures with volume and space).