Ahh I used to think the same way when I dinged 50 on my weaver. You still have a long way to go with regards to craft and control to even attempt vanya. Start converting/buying that materia.

Anyways, I quickly learned that CUL to 37 and CARP to 50 would greatly increase my quality of life as a weaver. Steady Hands 2 alongside Byregot's blessing is a game changer. Any of us could make suggestions on what you have available...but in reality, you're probably going to need more high-level cross-class skills.