How long would I have to wait to get underbite surgery? (Photo)

I know all cases are difference but could someone possibly make an estimate from the pictures? I really don't wanna have to wait a year to get jaw surgery especially since braces make the underbite worst I hear I don't wanna go a year looking like that... Is there anyway I can maybe have braces on for like 1-2 months because I don't wanna have to wait a year I want it asap.

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