My 5month old mini dachshund keeps playing to ruff with our cat & 2 kittens. She has pulled bald spots on ?

Them! Every time i see her bitting and draging them i yell at her to "leave that cat along" so she does till i turn my head... I keep them seperated as much as i can. Ive only had her a month and 2weeks and i have taught her to sit, shake, roll over, and lay down. She knows her name and always looks when i say it. But when i tell her to come if she doesent see a treat in my hand shes happy to ignore me. Anyway i guess shes dong good for her age im just frusterated with her being so ruff with my cats. My tom has a big bald spot between his ears where she snatched the fur out. He want swat the puppy and teach her to stop and the two kittens are just to little. Please help me find a solution because its impossable to always keep them seperated. Thanks for helpful answers.