Mass craft stuff in Ardentmill. I think the best option would be to craft arrows non-stop till you hit 100 diligence. Keep in mind that once you hit 10 smithing, you have to relearn it in order to get the diligence(from leveling up your smithing)
No. You can only each a max of 500 of each trait each day. It will still take a few weeks at least to max Diligence.[/quote]
The diligence received from leveling up smithing bypasses the 500 EXP/day restriction.