<human>: Give me the gist of the text in a nutshell

Hello!

A little background about myself will help...I'm a sixteen-year-old male living in England. I'm a big fan of reading, always have been since a little kid, and I'm compiling a list of the books I want to read/buy for christmas this year.

I'm looking at how to transition from children/teenage range to a more mature range. Currently, my book collection consists off: Harry Potter series, Time Rider series, Percy Jackson books, Skulduggery Pleasant series, the Maze Runner series and the Gone series. My only read adult collection is A Song of Ice and Fire, which I fell in love quickly.

I prefer fantasy/young adult books but I'm open to any genre at the moment. Basically, I like an unpredictable, twist-taking, exciting books with three-dimensional characters and a fantastic plot. I want something that I can't put down into I've read it cover to cover.

When I mean 'mature' book, I'm talking about gritty, darker books compared to the ones mentioned above. Nothing too extreme though.
<bot>: How should a teenage male transition from reading notable teenage stories to a more adult range of books? What advice/any suggestionS?