First, look around the city to see if there is an FS. If there is FS, ask him to help open a portal to soda. If there is no FS, go to the seaside of Stormwind and take a boat to Obajdin. Then turn left and get on Esoda's boat. When you arrive in Esoda, talk to the guards. He will help you mark the trainer on the map and find a trainer to learn from. Jewelry is best practiced with mining. After 300, go to the astrological platform in Shacheng to practice until 375.