Damian in most ways wasn't suited to be a blacksmith or weapon forger and he was by no means planning to pursue the profession in the near future.
However if working 2 more days as a blacksmith was enough to get him the bow that he massively needed, then he was completely willing to do so and in the process, he could learn a small part of the vast profession along the way.
Damian was the self-proclaimed Copy Mage and didn't want people to think that he was a fighter or somebody that relied on brute force, which didn't suit him.
It was only until he had a better grasp of his copying ability that he could truly become the Copy Mage, that he called himself in private, and to do that, currently, all he could do was increase his cultivation level as much as possible.