I need advice...please! We have a 7 month old kitten that we've raised as an orphan. Well...he is completely showing signs of single cat syndrome. He plays too rough and bites. Other than that he is a sweet cat but some days I'm at my wits end because i can't play with him all day to make him tired. I'm scared we have waited too long to get a second cat to help him get his playfulness out of his system. If we're not too late what cat age do you reccommend? Younger? Older? And does gender matter?