Scout Pevensey

Alternate Subject: Teaching an old dog new tricks... I have been away from SL for quite some time and have slowly been starting to play again. And the concept of the mesh avatar is kind of daunting. I'm getting outfits that contain 5 different sizes and I'm not quite sure how to wear them and the thought of changing my body and appearance to fit one (of five) one size fits all types and then does that mean everything in my inventory is crap and I have to get rid of everything and AHHHHHH, OMG, my head's going to explode. Are there any great tutorials out there (in layman's terms, I'm not a designer and don't speak the lingo) or advice on where to start in order to convert my avatar over to the seemingly more popular mesh avatar? "Dress up" (to borrow a term from my niece) is one of my favorite aspects of SL. Thanks!