It depends on the DZ. There are packing classes, or you can ask a packer to help you. I've shown some people how to do it (I'm a packer), but I would recommend someone with certification to teach you.
Like anything else, packing is easy, once you get the hang of it. Learn on an easy to pack canopy. I learned on a brand new canopy and I packed myself two malfunctions. Not fun.
Practice practice practice too. I remember packing a chute, undoing it and packing it again. And again and again. http://3ringnecklace.com/