You have an upgraded wedge, so you know what clubs can do.
I would suggest grabbing a set of irons. The lvl 37 burners or the like. Those and the G10's are 11 bucks (pretty cheap). That will give you an idea of whether or not you want to continue upgrading.
If you are waiting for a higher level stuff, try to play every day. You just have to do a CTTH or 3 hole game on your own and your level points will build up very quickly because of the consecutive days played bonus.
Happy hitting