Group 1 - The core idea is that ordinary individuals need to understand that leveraging in stock trading is not merely a speculative game but requires matching tools with their risk tolerance [1][2] - The first step for ordinary individuals to leverage in stock trading is to prepare adequately by understanding the rules and differences of various leveraging channels, including restrictions on fund usage and risk warning mechanisms [1][2] - Establishing a "proportional self-control mechanism" is crucial, with a recommendation to start leveraging at a ratio of "1:1" to keep risks manageable, and not exceeding "1:2" as familiarity increases [2] Group 2 - The safety net for ordinary individuals when leveraging in stock trading is to set "stop-loss disciplines," planning responses for extreme situations, including specific loss thresholds for reducing positions [2] - The ultimate significance of leveraging for ordinary individuals is to enhance their understanding of the market's risk-reward relationship, pushing them to learn position management and stop-loss techniques [4] - Those who leverage successfully often emphasize the importance of reviewing and summarizing their trades to identify what worked and what needs improvement, treating leveraging as a training tool rather than a shortcut to profit [4]