Can my face be fixed from "bells palsy" after 4 years non improvement? (photos)

I am Parilized On Left Side for over 4 years from Bells Palsy.I am 1 out of 88% who did NOT RECOVER. I can Not Smile and My face Is all messed up when I smile. This fixed? i am very depressed have ganied weight due to depression.i am just very upset that i lost my smile.i am overweight,and i have so much i wish i could have fixed.but my "smile" is worth more than a perfect body.

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