Hi, I am about to adopt a 7 week old kitten and am looking for any and all advice! Including, but not limited to, what type of litter, best food, how often do I feed, what do I feed, etc. I have a 15+ senior cat and a 9 year old cat, both of whom are very playful. We lost our 14 year old cat two months ago and both the cats and I are all mourning.