1, your understanding is correct, but the exchange will change the margin ratio according to the adjustment of positions.
2. Whether futures are not retail investors overnight, nor are they short-term or long-term. To do futures trading, we must have a more objective trading strategy according to our current actual situation, and the strategy is often much more important than simple prediction. For example, millions of funds and tens of thousands of funds have completely different trading methods and mentality.
3. It is also a good choice to use a small amount of money to make corn, soybeans and sugar at the beginning. It's an old breed after all.
I suggest that it is necessary to simulate. This kind of simulation does not mean that it will be of great help to future practice. Personally, the most important thing is to train the strategy of making orders and be familiar with the software. Imagine, if you are unfamiliar with software, do you dare to play games with others with your hard-earned money?
When doing futures, don't think about making money from the beginning, you must be down-to-earth, stand firm, and then talk about making money. There are also many people who tend to ignore trading strategies and trading mentality and blindly pursue so-called technology.