Hi Hebster,
Welcome to WGT. Yes - it is a great site.
"How do you ever get good" ??? - PRACTICE, PRACTICE & more PRACTICE. Sorry !!
From where you are, you should improve pretty quickly, you'll just need to put the time and the practice rounds in. Simple really !! Get out on that practice fairway.
As far as multiplays go - suggest you develop some friendships through the forums, with like minded & rated players. Start to get involved in the forums, put some posts up - constructive ones that is. Once you develop some friendships you can add players as friends and away you go.
Hope that helps.
Cheers Doug