I had to do this with one I got. Lot of biting because he was born from a outside cats and she taught him defensive living. Lol there is calming spray you can buy that works great too.
Cats are routine creatures. If you change environment know you will have a return home adjustment period. Always let your caregiver know your cats routine. Just go back to your usual and your cats usually adjust back. Some have a harder time than others and this you may find in your cat that...
I have to agree with giving kitty something to keep her busy. With my JUJU when I got him as a kitten I became the Alfa (mom) so he was coming to me for grooming and comfort. As he got older my other cat became the Alfa, so he didn’t need my attention as much. Then Meeko had to be put down and...