Oh dear, I feel for you trujw I really do, but ranting and raging at your mom is not the answer. You may well feel better at the moment due to getting it out of your system, but in the long run you will feel mortified if anything happens to your mom and you have not made your peace with her. She is not a false prophet, just a victim of false prophesy and sincerely believes it is the truth.
My suggestion is to wait until you have calmed down and collected your thoughts then give her another ring and apologise for your outburst and tell her that you love her. By all means tell her, calmly, that you meant what you said but that your comments should have been directed towards the organisation, not her.
You are lucky that you have a kind, supportive wife at your side and I am sure she will help you to gather your thoughts together before you make that call.
As Robert said, peace be with you and everyone who you love, and who love you