Try watching Ethoslab he'll teach you a thing or two and if not that then go on the MC wiki and that'll help (BTW i'm a redstone noob and i've been MCing for almost a year don't be sad if you don't pick it up it's complicated.)
Read the stickies, watch videos like SethBling and even GenerikB made a video a while back that explains the basics well. As always, Google is your friend. Also, just experiment, that is the best way to learn, for me, personally. Also, as Goklayeh said, although I dunno if his is a 'fun' map, redstone challenge maps are always fun. Seth has one.
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Stop worrying so much,
worrying is using your imagination to create things you don't want to.