Welcome and be welcomed. THank you for rescuing this beautiful Ringneck!
With her history and the general proclicity of Ringnecks to revert to an almost wild state when not handled and interacted with by humans, you have a lot to make up for, totally not your fault. She has zero reasons to trust humans right now, and with parrots its all about trust. I would refrain from taking her out just now, and the use of a glove usually does not alleviate that lack of trust (may even work against building trust). You must abandon your expectations of the parrot, and let her proceed at her own pace, which might be months or even longer, before she trusts humans again.
I would first of all get her a bigger cage, the one in the pics looks more like a cage for a budgie or other small parrot. Second, try to determine what her favorite treat or food is - that will be your ambassador to gaining her trust. When ever you pass her cage drop one of the favored treats into her food bowl, or even set up a separate bowl just for this. Do it every time! She has to learn that good things come from humans. As far as handling her, place a chair in the room and sit. If she becomes agitated, move the chair back a few feet, until she calms down. Read to her while sitting there in a clam and soothing voice. An excellent read is the I Love Amazons thread in the Amazon subforum, it has so much info that is applicable to all parrots. after a few days of this, move the chair a few feet closer, or until she shows signs of agitation again, and move the chair back til she calms down. Repeat. as time progresses, you will gradually be allowed closer to her cage with out upsetting her. Once you are right next to the cage, you can begin trying to open the cage and start training for step up, etc. Do not let her out until she has learned step up, because you will have to chase her around to get her back into the cage and that is a MAJOR trust busting thing. Major!
She has had a pretty horrible life so far, I am so grateful you adopted her. Gve her the time and patience she needs to open up and be a parrot again, and you will be rewarded!