Keep in mind, the 1-50 spread is about equivalent to the 50-60 (loosely) - I struggled a lot crafting items 1-3 levels above me in heavensward, more so I think than I did in ARR. Or my memory was bad, since I actually was hitting 50 on crafters before my first battle class, so it was a loooong time from leveling crafter to expansion. Being level 50 and trying to craft 51+ was especially difficult. I had the benefit of max melded artisan's gear at the start, but when those stats fell behind the newer gear, I was able to craft at-level or just above HQ. If you want to craft your own gear, I recommend getting all mats HQ, if possible.

Also, if you haven't been, I highly recommend GC turn ins daily. If you hoard materials, it takes roughly 30 minutes to craft them, and HQ will give you 25-50% of a level for each class, depending on bonus.