#BTC hits historic high#BTC challenges the 8W2 level#BabyMarvenf9c7 value 🉐 Embrace 🈶 When trading, you need to learn to judge the size of opportunities, and you cannot keep trading lightly or heavily. I usually play around and give it my all when there is a big opportunity.Rolling inventory is a tactic that can only be used when a big opportunity arises. You need to have enough patience to wait for that high certainty opportunity to arise. What are opportunities with high certainty? After a sharp drop, it oscillates horizontally and then suddenly breaks upwards, which increases the probability of a trend reversal. You need to identify this point and keep up from the beginning.Remember to roll in excess, not empty. Many people think that rolling positions carries risks, but I can tell you that the risk is actually very low, much lower than the risk of opening futures orders.If you only have 50000 yuan on hand and want to start with it, let's say you open a position with 10000 yuan in Bitcoin and set the leverage to 10 times, but don't use it to the limit. Only use 10% of the position, which is 5000 yuan, as margin, which is actually equivalent to 1 times the leverage. If you stop loss, you will only lose 2%, which is 1000 yuan, which is not much.