Math will be your friend here.
Learn about your BARG Factor:
www.wouzel.com/post/calculating-your-barg-factor and try to keep that number up while learning. It's important to look at shape AND volume!
Your current board calculates out to: 3.25 and for what it's worth, with maybe 8000 miles of winging under my belt at this point I still love my 3.5.
I also wouldn't worry about changing boards until your gybing and switching feet unless you really dislike the board. Demo stuff, try friends, feel things out. Don't rush to the next purchase.