Im going to give a different answer then Urth. He isnt wrong(you do get the most out of crafting if you have them all leveled roughly equally), but im going to give another equally not-wrong answer. You havent looked seriously at crafting yet, so you dont know if youll enjoy it or how deep into the pool you want to jump. So my advice to you is going to be to try leveling Culinarian.

So why CUL? A quickie character search shows me that while you spent a little time on conjurer, you have focused primarily on bard - and progressed to the low 40s level wise. So if you wanted to make yourself a gear upgrade youd need to get a class into at least the 30s(maybe a GSM in the 20s could upgrade your rings). Thats a lot of work before you see any benefit. So that eliminates CRP(bow), LTW(much of your armor), WVR(odd pieces), and GSM(most jewelery). Yours isnt really a heavy armor class(ARM) and you wouldnt need too many other smithed items either(BSM). You could use ALC to whip up some potions, though the really good ones would take a decent time investment and many of them can be had for a song on the market board. As for CUL, you wouldnt be making yourself the best meals right away either, but any meal at all that you consume gives you an EXP boost(3%) and its not hard to find some lower level ones thatd get you a few extra points of health or damage. In addition to having a more immediate benefit, CUL uses very few ingredients from other crafting classes to make its products(to give a counter example, a LTW might need string from a WVR plus some metal from an ARM alongside the leather they tanned personally to make a piece of armor) - indeed, many of your ingredients would either be hunted or fished up(the rest being primarily botanist items). And finally, if you do take the full crafting plunge then you will 100% want the CUL cross class skills as they have a few of the best(and hardest to replace) - so getting a headstart on that certainly wouldnt be bad.

Quick side note. Crafting/gathering is fairly well level synced to match up with adventuring. What that means is that a level 40 botanist would gather certain wood that a level 40 carpenter would use to make a bow that a level 40 bard would want. And as a bonus piece of advice, ill give you a headstart on trying crafting. Whichever class you decide to try first, once you become a member of their guild and unlock the class you can get your first few levels super easy and quick. Each guild has an NPC who sells the low level crafting mats(Material Supplier) that you need to make all your recipes up to roughly level 15(CUL is the exception - they need some fish that come from a different merchant elsewhere in that same town). Just making one of each item usually gets you enough exp to get to roughly level 15 and only takes around an hour or so to do. Regardless of what you pick, i hope you continue enjoying the game and please come back if you have further questions!