Once you get her out, keep her out for a while. Right now she's getting what she wants when she is picked up. She acts out and gets put away.
I suggest getting her out, getting passed the messy, flailing, mouth agape part and setting her down next to you on a bed, couch, floor, whatever. Just be sure you can get her there without dropping her if she's flailing a lot.
Once there see if she mellows out while next to you, but not being held. If she begins to associate your scent, mannerisms, etc...with something more than a quick, uncomfortable experience she will learn that you're not a threat. Her behavior is indicative of her being scared. Try to gradually earn her trust through sitting with her, moving her to your lap once comfortable, but not confining her.
Last night I sat with her in the bathtub for 20 minutes, didn't get musked on and she didnt even strike once. It went really well, thank you for your suggestions and your help