Sorry you're freaked out by the Dx.
Whatever the Dx actually is -- BP or schizoaffective -- you seem to have a wonderful care team who I'm sure will do their best to help you.
Try your best to focus on treating the symptoms and not the label. I know it's hard not to worry about the label, because I used to worry about mine too, but I think you got this.
BTW, I think the only time a label "matters" is when you're dealing with insurance companies. So I guess it might be useful to see what your insurance thinks. I know mine refuses to cover certain meds because of my BP Dx. (Not trying to scare you, but I think it's good info to know.)