GB: I can't help with the guide wax, never used anything like that. You might spool off the first 40 ft of your fly line and clean it with a mild solution of water and soap and then coat the line with a good fly line cleaner/conditioner. That being said, I have seen a lot of beginners trying to cast with virtually no fly line out the end of the fly rod. Try pulling off twenty feet of line out the tip of the rod and then try casting. You might also look at this three part video on casting by Tim Landwehr from Tightlines Fly Shop.