I would suggest getting some actual psychiatric help. Your symptoms may or may not be caused from the meds, but in any case, with a good psychiatist and counselor on board, you could get someone to help advocate for you with your neurologist and provide coping techniques for you when the anxiety gets bad.

There are instances of steroids unmasking bipolar disorder (it happened to the newscaster Jane Pauley) and other psychiatric problems. Your situation sounds pretty complex, so it might be time to call in the experts.

Benzos are a like putting a bandaid on the issue. It covers it, but the wound is still there and the bandaid will wear off eventually. Drinking alcohol is also not helpful in the long run. Both can be really addicting and not particularly good for MG.

Good luck!