Kudos on getting this far in such a short time.  Making games isn't easy, and getting better at making them can be a life long pursuit.  That being said, I don't understand why you chose the default controls you did.  WASD is pretty much the standard for fps games, and the ZQSD is strange, unless the reasoning is you are using a unique type of keyboard. 

Keep up the effort.  Never stop learning and you'll go far.