[dhiya harun]

hi guyss..
im a newcomer in cat owner world

last week, i received 3 kitten, age around 5 month old, mixed breed, medium long hair,.they are adorable and have a very cute face with blue eyes.

the problem is all of them are afraid of people..they will stare at the person,and give a growling sound, overly panic, even banging their head to the cage wall if i'm trying to remove them.
they'll never eat if someone watching them, and since now, i cant even bath them properly,trim their furr,clipping their nail will be impossible
i never let them free from cage, because they'll run away..

but 1 female, i called her 'teh', she showing some interst when i decoying her with something.she is less scared than others, but when others start to panic,she'll follow too..

i'd been thinking to separate them in their own cage..its that okay for my kitten in that situation,stay alone in the cage?
is it easier for me to train them one by one?