Don't want to spoil GCC

Hey, for a week now I've got a beautiful cinnamon Green Cheek Conure and I've been learning about parrots for a year now. When I got her I was sure I'd have to first taim her because she would be to scared to even look at me. To my suprise she was so calm that breeder told me to open cage on the first day! She immediately flew to my shoulder and I was pleasently suprised. She always flies to new people in the house and is very friendly. I know Green Cheeks are very energetic but this one is very tiering. After 3 days of being quiet she screams whenever I'm not letting her out. Of course I'm not to not spoil her. She flies wherever she wants, she flies from me, to me and I'm starting to worry she's allowed a bit to much. Don't get me wrong I love her but I was preparing to handle scared bird to taim and learn tricks with, not a parrot thats biting everything without fear :/ Can someone tell me what to do to calm her a bit or send me to a video where they explain such topic?

firstly how big is that cage she's in? From the picture it looks WAY to small. Thats a cage for a single finch. I would get her a larger cage asap. It could be its way to small and she wants to fly and stretch. Secondly despite her personality that doesn't stop you from training her. You can train her to stay close to you when she's out and to remain calm. You will need lots of patience and put some work into it.
Also how much time are you allowing out of the cage. Conures(like all parrots) should spend most of the day out of the cage for exercise and stimulation. She doesn't need to be out all day but cant be in the cage for most of the day

Welcomed to the forum! Congratulations on yiu beautiful GCC!

Yep you need a much larger cage. It's a big one time expenditure, but laste the life of the Parrot. And pays off as a happy parrot is much easier to live with.

GCC are very clingy, they like to be with their people. When you are out of sight they flock call, you need to come up with a word, phrase, or whistle, and use it everytime to answer back. You can so iniate the flock call first, when you step out if sight use the phrase. To parrots it's un natural to be split up, or not to call back. Usually this helps li.it the screaming freak out when you are out if sight.

Bites , yes GCC learn to use that beak to keep us inline. Under the GCC thread their are lots of bite stories and advice. Ites can happen when the bird is over stimulated, to urge you to fly away from other pets, danger, or other people, out of fear, because you moved to fast, because they are tired need to eat or drink because they are getting their way... Pay attention to body language, their are always pre bite clues, try and respect them and prevent bites by paying attention.

Good article covers normal behavior to problems like bites
https://lafeber.com/pet-birds/bird-behavior/

Also good.
https://lafeber.com/pet-birds/stress-reduction-for-parrot-companions/