try putting a snack no your upper arm and approach her slowly and try to get her to get on your arm to get the treat, if she gets mad dont back away right away just stay still for a bit and try to get her to trust you with the snack, not sure, she might just not like being handled
i am new to chmaeleons too but i binge watched @Gingero 's youtube channel it has a lot of good info than can answer some of your questions her channel is neptune the chameleon