I read constantly as a young boy and all the way through adolescence - encyclopedias, fiction, even a bit of poetry - I was an avid writer as well. I spent a good deal of time in the middle school library, checking out books of ghost stories, historical fiction, etc.
Yet, teenagehood being what it often is, I lost interest in reading and mired in video games (not that video games are bad, I love them still) and depression - though I still continued to write. I could not, at the time nor later in life, understand the idea that being a teenager was meant to be the best period in one's life. The notion still riles me and engenders in me nothing but disdain for its falseness.
A combination of neurological and situational maladies contributed to my deep melancholia and I still have that melancholy disposition to this day, though it is more now a permanent piece of my personality than an impediment to general happiness.