Miss Bai Sha, you shouldn't go all in at once; you need to learn to build your position in batches and set stop losses. In this rising market, I shorted by building my position in batches to lower the holding price. Selling on dips has even made me a slight profit. For a position of 200,000, at least divide the entries into 3-5 batches. The proportions should be 1-2-4-8-5, so even if it rises further, your holding price will be between the opening price and the highest price. This makes it easier to exit a losing position. As for this trade, even if it comes down, it won't be easy to make a profit.