I have my crafting up to level 50 and now am not getting any more crafting quests.
I long ago already purchased Heavensward so that probably would not be a problem

So how am I able to advance in crafting after levelling my crafting up to level 50?

(my character level is now 52)
and btw cannot advance further because all the quests are dungeon ones and I can sit all day staring at dungeon booking and never seem to get paties together. It gets really boring staring at the screen for hours!