Not school related: I want to know if this is how i deal with my problems with my cats

Cat 1: Her name is Sabrina but we call her mama kitty when i found her she was prego we kept 1 of her kittens her problem is she attacks every cat in the house

I think to solve this is to get her a cat toy that i handle by the stick and play with her daily

Cat 2: Her name is mystic we got her from our landlord and she was really sick but we nursed her back to health

this one im not sure how to deal with she scratches up everything we already have a scratching post in fact none of the cats use it they pass by it everyday but i think i just get another scratching post

Cat 3: His name is Cuddles he is Sabrina's son when he was younger are dog threw him across the room so now he has seizures he is also blind in his left eye

his problem is he plays too ruff with the other cats i think i just have to do the same thing that i should do to Sabrina

Cat 4: His name is Spooky we got him the same way and time we got mystic

he really isn't a problem but its just that he rarely comes out he has moments when he is just scared of everything and i think its because of Sabrina

Am i correct on how to deal with them or am i missing something plz let me know if you have any suggestions tell me thx