My character isn't a high enough level to ask questions on the right message board...

[Toukai]

Crafting leves are a fantastic way to level your crafts. For example, i get about 42k exp or so from a lv25 leve if i turn in a HQ version of 1 item. Being lv35 now I can HQ quite easily with the right cross class skills.

Takes a little while to make sure you have all the proper mats (Hq mats help a lot more to make HQ items) the more quality you get while crafting (even if you don't get a HQ item) boosts your exp gain on the item you make so just making the mats to complete the leve tend to get you a huge amount of exp and you can repeat that leve over an over again if you can make the HQ item consistently. A good way to level quickly too. You could also just buy the mats/item on the market board if you have a lot of gil on hand.

To clarify on what i mean by quality for new players or just people unfamiliar with crafting; Its the blue bar you get when using your basic touch skill (19cp skill is your 1star basic touch) if you have an item than needs 1000 quality for 100% HQ and you only get like 18% of that filled cuz its still too hard, you still get like a 150-200% Exp bonus on the craft. I wish i had known that when i first started crafting instead of ignoring the quality bar and just synthing the item for barebones exp.
Using high quality materials starts you off with a nice amount of quality already on the synth.

If its a 3 material synth and u use 3 Hq items you usually get between 10-15% Quality already filled, so just tweaking your item and making sure you get about 20-25% quality (if you can't actually get a higher rate since the item your synthing is too high) you'll still get a ton of exp.

Just so you know that 1st 15-20% Quality is the hardest to get since it requires about 50% of the necessary total of quality points to get to 20% (Ex: 500/1000 quality is about 20%) Which is weird, but if you can get to about 700 points you're looking at about a 60% Hq rate. Its kinda weird like that so just know that HQ mats are really really handy when trying to make a HQ item easilly.