Meanwhile, back to the OP with apologies for straying off-topic:
Yes, drinking again in any amount sets any progress you have made in re-wiring your wonky brain back to square one -- or even worse.
There's no specific timeline for getting over some of the symptoms which may be attributable to PAWS. The only currently available cure, beyond common-sense measures such as healthy diet and exercise as well as constructive work on your recovery -- is sober time.
The thing about "anxiety" is that it has a pretty vague definition. If any of what you're experiencing as anxiety is attributable to PAWS, a lot of that should sort itself out over time.