OMG 4 hours 23 mins

You are a saint,
I also use the quiet talk and that seems to quieten mine down, but then they're not screamers really.
First off we need to find something that works for both you and your bird. Obviously ignoring her doesn't work, so that ones out. Have you tried talking to her from another room to see if that will quieten her down.???????? Also try putting her on the floor. Is she flighted or clipped? If flighted and she doesn't like the floor she will probably just fly off again.
I'm worried that my neighbors will start complaining soon and if that happens I'll have to get rid of her.
Obviously this is something that you want to get sorted quickly, but please don't try a lot of things all at once, this will only confuse her and could end up making the problem worse.
Oh another one if she screams have you tried putting her in her cage and covering her? When she stops you could talk to her and take her out, as soon as she starts again, back in and cover?
Welcome to our family, any questions just ask. We're here to try to help.

Let us know if any of these suggestions work, and in the meantime we can try to come up with something else that may help.
not sure if picking him up in the first place was a reward or not, but he definitely didn't like the floor
Minzer, it don't matter if it was a reward or not (never thought I'd say that

) if it stopped Iggy from screaming,