Okay, let's focus on options that don't require you to go out, since it's safer for you and others to stay in if you can. Some people use massage oil, baby oil, olive oil, coconut oil, or Vaseline as lube, so if you have any of those things in the house, you may be able to use them as lube. However, be aware that natural oils, like coconut oil or olive oil, may cause irritation to the vagina or trap bacteria there, which can lead to infection.
As far as masturbation goes, it may be that you just haven't found the way(s) of masturbating that work best for you yet. There's no specific way of masturbating that feels good to everybody, and sometimes it takes experimentation to find the ways of masturbating, and the fantasies that help you while you do it, that feel good. This article covers some ideas for what to try: Going Solo: The Basics of Masturbation
. When you're masturbating, do you feel like your brain is really engaged in what's going on?