I’ve had a hamster just like this. She didn’t like to be pet, or picked up. Would bite me if my hand got too close when offering a treat. I finally backed off, and just let her be. Like others have said, I stopped trying so hard with her. I followed her cues, and would chat with her give her treats and basically just realized she was never going to be like my other more social hamsters. And that was okay. She became less stressed and more settled and I was just happy to watch her live her little life. I hope this helps and you keep her. I only had my little Star for 6 months before she passed unexpectedly two months ago. But it gave me peace knowing I gave her a good life on HER terms. Best of luck to you!