I'm working of glyphing cause a freinds said some people will pay well for glyphs....why is it on some items i get +5 glyphing and one time i got a +10 glyphing? can anyone tell me why the differance?

most likely the items you're glyphing. more difficult items will award you more prof points.

when you're starting out, glyph magical/rare tier I items. keep in mind prof points are awarded randomly in a range (for example 5-8 points)