Whenever I hold Jack, pet her, play with her, or do anything with her, she has to have her beak attached to me. She nibbles on my fingers, ears, nose, hands, feet, and she just doesn't understand how hard she is actually biting. She doesn't do it to be mean in any way but she just gets harder and harder and harder until I can't bear how hard she starts to get. I have been trying to work with her to stop but it's not working. When she is chewing on me, I take whatever body part out and firmly say no. Then she sits there and lets me give her scritches, and preen her, and flip her over, etc. but about half a minute later, she finds a finger, and just chews. It's like she wants to preen me and my feathers are underneath my skin so if she gently works my entire skin off, my feathers will come out...I'm not quite sure if this is how it actually works. I have tried to give her a toy to chew on so she knows to play with that instead of me but she isn't interested in toys when she is getting attention from me, she wants lovin', and if I give her a toy, she will gladly walk it over to the edge of the bed and just dropped it and then come back.
A lot of times its like she gets over stimulated, she gets sooo hyper and just starts running around like a maniac playing playing with me. It's hilarious but this really is when she starts playing too rough.
What can I do to teach her that i'm not made of steel? You know how if you are preening them and you accidently preen too far down a feather casing, they say "erehh" (something like that lol) cause it hurts and they want you to know not to do that, well when she chews on me and gets too hard, I make that same sound but she looks up at me like I'm some weirdo and then goes back to nibbling.
Any advice would be greatly appreciated.

I have the same thing with Sophie. So far nothing has changed her mind about it. Most the time its no big deal but once in awhile she wants to make a point.......... and its owie time.

maybe you don't have the erehh sound down and she doesn't understand what you are saying. So funny!
Gabby likes to chew on me also whenever he is out. Luckily, he doesn't do it too hard most of the time, but when he does, I just remove my fingers from his beak reach, and move onto something else with him. I guess you can just keep telling her no, or making your erehh sound, but with more authority?

Murray my GW does this also. I understand exactly what you are saying and it can get frustrating. He always has to be gnawing on me and it's not with ill intent. It's a comfort factor for him. He always has to have something in his mouth and he doesn't understand how hard it can get.

I just posted a reply this morning on what I do with him and it's working. I replied in the thread KatyKat posted with her eclectus on her shoulder. That's the jist of it anyway. It's working here and Murray is one hell of a stubborn bird.

I'll check that out now. How you described Murray is exactly what Jack does. I havn't had any other big birds so I wouldn't know how Jack is compared to other big birds, but she is sooo stubborn. She'll get there but at her own pace and how she pleases. She prefers to run from me when she doesn't want to do what I want her to do as opposed to biting me which is frustrating. If she is perching on something and would like to stay on it, she will run to the opposite end if I try to get her to step up, but she knows I am being serious when I get the dowel out. As soon as she sees the dowel and I say step up (even if I am 10 feet away) she stops what she is doing and lifts one leg up immediately...it looks so funny

I have the same problem with Doyle. He thinks I am a chew toy and toys only distract for a few seconds. Whenever he gets to hyped up I take him back to his playtop to calm down. But now that he has learned to fly he just comes right back. lol, I was no help. I am going to read Lara's response now.

When Harley was about 6 months old, she went through the teething phase. She didn't bite hard, but it was annoying. I would blow on her nose and that got her attention away from the mouthing. Harley never seemed to understand the sound distraction and instead of stoping the biting, she repeated it. Blowing is really the only way I can get her to just stop.

I think it's a macaw thing, as mine always have their beaks on me. I taught them to "be easy", and it took a LOT of time and patience, gently removing their beaks and telling them "be easy", before they finally got it. When they forget, they still get the same treatment, and if they nip too hard on purpose, they get a forceful "NO" and the evil eye. It works, but they always seem to need reminding that I'm not covered in chain mail and feathers :-).

I am so glad I am not the only one with this issue, I am going to try what you guys have suggested and hope for the best My fingers have been tenderized enough by now

Murray's into beak slapping too, or maybe he's developed it and converting to it from the constant gnawing. Murray has a 2 year history before he came to live with me and defends himself from hands with his beak. This is what he has learned and we've slowly gotten away from that, but it has taken 16 months, and it's still not totally gone. But he does the beak slap. I can handle that and I let him do it because that's his way of communication with me and I feel that's important in our relationship. His beak slap is a way to get my attention or to tell me he doesn't like what I'm doing. Oh the ole knock against my head gets my attention but it doesn't hurt. Funny more than anything.

Let us know how you progress and how you do it. I find people's different techniques of progression very informative and interesting.