It was 1982 in The Andover Bookstore that opened up new vistas of imagination. Like many readers of a certain age, the first “classic” SF I read was Robert Heinlein. I believe it was either Rocket Ship Galileo or Tunnel in the Sky. Quickly followed by the other juveniles, mixed in with Asimov, Silverberg some Clarke. I alternated SF with fantasy, with such authors as RE Howard, Moorcock, Leiber, Card, Anthony.
I was 12 (as the saying goes...) and have been reading since. I still have all those paperbacks, and over time have been able to collect many a first edition. I complemented the sense of wonder with occasional role playing games in both the SF and F genres. Most recently I’ve been doing play-by-post on web forums, a creative exercise in collective storytelling in which classic SF inspires and informs the game.