Ixali quests will give about 1 level daily, use your leves when they replenish for courier types and only turn in HQ, and craft whatever is the cheapest/ easiest to gather for close to your level. It's not too likely that you can craft a lot of food that people will actually buy since people use such a small assortment of food and mostly high 40's to 50 stuff. Grinding generally just takes a while, but it's necessary if you cannot wait. Make sure to use engineering manuals from your GC. Personally I'd just wait it out a bit. Leves replenish very quickly relative to the amount of experience you can gain from them (for crafting).