Welcome aboard Jon,
This site is great if you use it correctly. We have very good writers and a few who have published. So, find the ones that you can work with and learn. I keep a "tips" file that I refer back to.
Have thick skin. People will make comments about your work that you might not appreciate, so keep what makes sense. But remember that you have to like your story at the end of the day. That was some advice given to me.
Do the contests. They're great. They stretch my mind.
Put more info into your Profile if you want. I want to know what your genre is and if you have a tech background or history (just a hobby?) or whatever.
I generally use the In-line Reviews. So, if I read a story of yours, please comment on at least a few of my comments so that I know what you're looking for. Some people aren't worried about -ly adverbs! And I hope to remember that. Many of the really good writers don't bother much on some technical grammar details.
Again, welcome aboard
George FLC