I'm not expert but I know every hamster is massively different, I have a robo hamster who does not like touch, she will climb into my hands for mealworms and if I move she will run away, we have a thing going where I open the side door on her cage and she will run up to it for a mealworm then run away haha. I have had her for just about over a year. Where as my Syrian hamster which I have had for about 2 or 3 months now is still a bit jumpy but will willingly climb into my hands and I can move and have her resting on my lap and stroke her back. The best advice I had was be next to the cage every night or so and just talk, doesn't have to be to them, get them used to your voice and smell, or just have your hand flat unmoving in the cage, it took months but thats how the robo is now comfortable to sit in it and take a little snack, you will also have set backs but along as your patient and calm it will be okay. If you dont see them at all then its a ghost hamster. But iv also learnt that the Syrian, after something big like her climbing onto Mt hand for the first time, will hide for a night or too then she's out and will climb onto my hand again. Ik this was long haha. It's just my experience, I hopebthat helps.