Level Mining with a route that protects your gold, uses first-craft knowledge intelligently, and moves from cheap skill-ups into the recipes you actually want to make.
Note which first crafts award knowledge or unlock the specialization you want. A first craft is usually worth more than repeating the cheapest recipe for the same skill-up.
Stop when recipe difficulty turns yellow or green, then compare the next recipe's skill gain against its material cost. Stockpiling before you have seen your realm's prices is how a leveling route costs triple.
Personal gear, consumables, enhancement work, or public orders. Run the profit calculator before committing concentration or high-quality reagents, because those are the choices you cannot take back.
Recipe sources, skill-up colors, and material prices are patch- and realm-dependent. The route teaches the decision process; check live prices before buying materials.