My wife was just diagnosed with GAD with delusional symptoms

We've been to the psychiatrist twice and are still trying to get the medication right, and she has days when she accepts that her greatest fears are only delusions. Today, however, is not one of those days. She's very angry and wants to liquidate her IRA and get a divorce immediately.

She's had some similar episodes, but I'm still looking for advice to ride it out until it passes. We have two children, 12 and 8, but I have to consider. Most of her anxiety is in the cause of their safety and well-being, although quite a bit of it is because of her insecurities and fear of relationships (ie, she does not feel worthy of love and affection)

Any advice is appreciated. The current medication is an anti-psychotic (olanzapine) and Xanax, but the therapist is recommending that the psychiatrist treat it strictly as GAD, so maybe the medication will change when we see him on Wednesday. Historically Her diagnosis's have been depression, anxiety and bipolar, so she's very skeptical that the diagnosis has changed to GAD, even though the therapist told her that mental illness can evolve in different ways.