What is a good name for my two getting published novels? Are there plots good enough? Which is better? HELP?

There is a reason why 12 years old right about fantastical things. A 12 year old doesn't have the life experience of understanding of things to convincingly write about events that happen to more mature or young adult characters. No matter how talented a writer you are adults will see through a 12 year old writing about adults. No matter how smart you are or how good a writer you are. There is no intellectual substitution for experience. That is why young authors write about stuff meant for younger audiences, and if you are going to write, then you should stick to something in the tween ages type of subjects.