You are training your bird the moment you make eye contact. Even how you approach the cage and use your voice is instructive to Justice. For the next few weeks keep things easy and monitor how she responds. Training any animal is based on how the animal responds. How fast you progress is up to the student. When dealing with Justice always respect her moods. She is an Amazon after all, and you will have emotional moments you will have to respect and back off.
Give her a few days of allowing her to simply see you eating your meals, watching tv, and allow her to get used to you being around her. During this time you can monitor her behavior and to determine when you can get going with training her. It might be a few days and it might be a few weeks. Some parrots who have formed deep bonds with another person can take several months.
Take your time, be patient, and Justice will become a member of your family-but it will be on HER schedule.