First, if you haven't seen it, I'd point out the
general help page on the site. It's not well organized and there's some not-so-useful stuff there, but there is also some good stuff if you feel like reading a bunch.
Next, for structure and organization, I'd point out
this article that, coincidentally, has a link to the structure you have in question number four.
Also, there's a
bit longer article that talks about embracing the writing process. That might help you as you progress from having an idea to actually getting it on the page.
For writer's block, I might suggest
this story... oh, wait, that's not the right one, it's
this one. That actually does give a lot of ideas on how you might get your creative juices flowing, even if you don't actually "win" in the story.
The advanced editor is fine, not scary at all. It will only get more complicated when you decide you want to script and use items. Pro tip: don't decide to use those things, instead wait until you come to the point where you cannot make your story do what you want -- then you will have a purpose for using them instead of just using them because they're there.
Have fun and good luck with your writing!
