Canned food is actually better for cats than dry. http://www.catinfo.org/
Kittens need three or four small meals a day, so it might be easiest to give your kitten canned food in the morning and evenings, and to leave out dry food for him/her to nibble on while you're at school.
Many people recommend not using clumping litter for a kitten, as they could eat it. A litter box in the bathroom is fine, and a second one elsewhere in your home, because kittens tend to get to playing, and then have to "go" in a hurry. Also, many cats prefer one box for "#1", and another for "#2". The boxes should be cleaned daily. Have you read the articles you can access at the top of each page? There are several good ones on cat care.