Obviously, it's not a good idea to give a cat catnip everyday, as that is not a normal routine. Instead, it's recommended to introduce catnip to your cat once every two weeks to avoid overexposure and habituation. It's important to keep in mind that young cats may not react to catnip and providing them with too much won't make a difference.  This is because they won't develop sensitivity to catnip until they reach about six months old. So, don't be fooled into thinking your kitten doesn't like catnip, and avoid overdoing it until they're old enough to enjoy it.