Well I also have two very destructive almost 10 month old kittens. All I can tell you is to go around and baby proof everything. I had to install child safety locks on all of my lower cabinets, I have to keep all paper products put away in cabinets too. My kittens aren't allowed in either of my bedrooms because they are so destructive. They have plenty of toys and each other to play with but I've also been told that they still must be bored. I'm hoping that as they mature that they'll calm down and mellow out more. Good luck.