Welcome to the forums.
As for riding advice: Do yourself a favor and invest in snowboard lessons. Instructors can see directly what you're doing wrong and teach you how to avoid mistakes. Once you get used to a wrong technique, it is very difficult to lose it. You will enjoy snowboarding so much more!
As for waxing: I wouldn't worry about that too much. Waxing is important when you go faster but in the beginner's stage it doesn't make that much of a difference. If your board is really dry, have it waxed at the resort. It's usually not as perfect as a hand wax but in your case I'd rather save than money for lessons.