Would not have gotten this far on coding if not for Shlomi and Yisrael! Plus a ton of others on here that I have pulled bits of code and wisdom from. And be sure to check out Code Queen at totallycodable.com
There are a couple really good tutorials on Wix (the ones with attached editor tutorials). A lot of the wix tutorials fall short in explanation, but the ones with editor access help clear things up.
For newbies....scripts open up a world of possibilities, but they also open up a can of worms in load times. Keep it simple as a lot of coding does not really play well with vertical pages in regards to those load times. Each code added will increase your load time significantly so you have to redefine against the norm of trying to get most on to a vertical format. You really have to think in a horizontal format again.
Build all those bells and whistles up, but then do not have any regrets in tearing down to balance to load times. You'll learn a lot, and then learn what you really do not need. KISS...keep it simple stupid