Dragonslayer magic

You're one of the few REAL dragonslyer mages who were trained by a dragon, but unlike the others you met you don't wander the lands in search of the dragon that raised you but rather out to make the most of what he left you: memories of a childhood (literally) full of magic and the gift of using dragonslayer magic. You think about your past and feel even more determined to finally be allowed to use your magic! But when you look back at the form and see the sheer amount of questions left to answer your motivation shrinks down and as you pick your task back up you let out a deep sigh, hopefully you'll be done before the post station closes or you'll have to wait until tomorrow to send the letter off! And so you shift your focus back to the sheer endless array of questions the next of which would be...