This solution is for BDO Xbox
Leveling up by AFK Processing is easy. It's much much quicker than leveling up your fishing!
Tools that will help.
a)Silver Embroidered Craftsman's Clothes +X. Whatever level u can afford. You can sell later EZ.
b) Sute Tea (Life EXP +8%
c) Elixir of Time (Life EXP +10%) if u are sitting there watching processing, because it only lasts 5 minutes.
1. Buy Cotton or Flax at Central Market and move it to your pocket inventory. I buy stacks of 1,000.
2. Open your Processing Menu (LT and up on d-pad, then over to the left with analog stick, selecting Processing)
3. Tab over to Heating. Don't worry about selecting anything from the list, just hit Select A to open your pocket inventory.
4. Select the stack of cotton or flax.
5. Hit Y to confirm Let it cook. Walk away, go to sleep, or watch it - it will processes until your material is gone.
You can then process the cotton or flax thread it produces into fabric, same steps except choose Grinding instead of Heating. More bang for your buck!