Hello! I took a brief look at your collection. I'm not sure how much dust you have saved up, but from a cursory look, I believe you have enough cards to form a solid base to a Midrange Hunter, Midrange Pally (possibly Murloc depending on your dust situation), and potentially some type of fun Priest deck that may be semi competitive around those ranks. I think if you spend your dust wisely, you can easily hit rank 15, perhaps even 10 or higher this month!
You have a Soggoth the Slitherer. I recommend disenchanting this, as you will most likely never use it. This becomes a "free" Legendary for you! What you craft depends on which deck you think you will be playing most over the coming weeks/months, especially if you are F2P. The meta will almost certainly be shaken up a bit today with the balance changes, so waiting a little while to craft isn't all that bad of an idea either.
I play almost exclusively on NA, but feel free to add me (gnorik#1704) if you would like :)
I always get stuck in the should i disenchant wild cards to make standard .... or leave the wild and just struggle on standard
If you disenchant wild cards, you will never be able to play in wild. Also some tavern brawls will be harder and adventures. Only you can make the choice, me I wont disenchant wild cards unless they are utter crap.