Suppose you have found a strategy that you like or that suits you after a period of study (there are countless free resources on YouTube), and you want to backtest this strategy with at least 100 orders. I recommend more than 200 orders with a time span of more than one year. If you are profitable, you can consider verifying your strategy in the market, instead of going all-in when you don’t know anything at the beginning (the more novice, the bolder, and the more likely to go all-in). If it is a swing trade strategy, such as looking at the 4-hour line, you may not need to test so many orders to get a relatively reliable backtesting data.

2. Risk management. This is completely indispensable. I don’t know if some people have learned about risk management when they are all-in with 125 times leverage. No trader can achieve a 100% winning rate. What we need to do is to make more money than losses in a month or a year, and you will be profitable. Please note that I said more profit, not more win. For some high RR (risk-reward ratio) strategies, you don't even need to win more than you lose to make money steadily. For example, for a 1:3RR strategy, you will actually make a profit if you achieve a 33% win rate. You lose two orders and win one, but you win three times your risk. So it's just a hooligan to talk about the win rate without talking about RR. When I first started trading, I came across a strategy that could easily achieve a win rate of more than 90%, but every time I lost 15%, my account would lose money. It must be more than 95% to make that strategy profitable steadily. And don't set a stop loss. Don't fall into the trap of small wins and big losses, unless your test data can support you not setting a stop loss. The circles I am familiar with all set a stop loss for each order, that is, you clearly know how much you will lose if you lose this order. Know your win rate, know your average RR of winning orders, know how many trading opportunities you have in the market every week or month, and then set a percentage of the total account to risk for each order (you can decide based on your win rate, such as 2% for a conservative, 5% for an aggressive one). Also, to avoid revenge trading and prevent yourself from getting carried away, you should set some trading rules for yourself, such as stopping trading for the day if you lose two orders in a row, stopping trading if you lose 10% in a day, etc. These are all part of risk management.