If you use a conditioner your hair will be oily and limp. For your conditioner to work well it should be combed through and left on a few minutes. You should always remove all makeup before going to sleep. You should use a moisturizer every day, with or without makeup . Use one with a sun screen during the day, and one without a sun screen at night.
Super glue is fine to use on artificial nails.
You can get rid of split ends by conditioning. Coloring your hair at home with store products produce the same results as a salon. Lice cannot fly or jump from person to person. Check your child's hair if you know they have been in contact with an infected person, and remind them not to share combs, baseball hats, etc.