My kitten has separation anxiety?

get a catsitter to watch him, i once had to watch my garandmas cats when she left becuase they would things like that, mabey you have a relative, close freind, or neighbor that wouldnt mind watching your cat and keeping it company while your gone, please dont get a new cat your cat will miss you so much and you will regret it.

Don't give him the opportunity to destroy the entire house. He may be overwhelmed by or afraid of having so much empty space around him. Confine him to one room (yours?), along with his litter box, food, water, and some toys. Make sure to leave at least one thing (clothing, blanket) with your scent on it for him to sleep on and be comforted by. Purchase a plug-in product called Feliway (cheaper online usually) that contains pheromones that are very similar to a cat's facial pheromones. The scent, which is usually not detectable by people, is calming and soothing and basically tells a cat that everything's okay. Another kitten or even a young adult cat can be good company for him, as well as a playmate and napping pal. Cats and kittens typically prefer to have another around.