It sounds like Misty is easy to over stimulate. I would give her petting and love sessions in small doses. Play with her for a few minutes and if she starts to bite then stop. Wait a while before playing with her again. There are many cats with this problem and you just need to give her time out to settle down.
As far as not liking to be held, out of my twelve I can only pick up and carry four of them. The rest freak out if I try! They like laps to but not being carried. I think that is something that may never change with her. She's just telling you that she doesn't like it meowmie!
She probably will mellow some as she gets older too.