From high to low or vice versa, still holding until a certain profit. to lock it. Definitelh, you must be able to take hard on your emotion so to control your recklessness. You must hold to take in the lowest point and not to sell when ppl just talk about it.

Ultimately, China is the biggest exporter in the world. Whatever u need, they have it. Just name it, taoabao, Evs, imitation, foods. You can name it as they have most raw materials and grow in their country. You do not doubt the country as they have million of ppl to help grow and earn money