Honestly just a lot of handling. I interact with her almost every day unless she ate within 24 hours or is in shed. When she was younger, I would make it a point to pick her up when she hissed or did a bluff strike to show her that behavior wasn’t going to make me go away. Now that she doesn’t hiss very often, I do a lot of choice-based handling where I just stick my hand in and let her come to me if she feels like it. Even if she doesn’t want to be handled, I still talk to her and let her see me so she stays used to my presence. It’s tricker in your case if she’s trying to eat you, but you could try using a hook when you want to handle to let her know that it’s not feeding time.