To be honest, I used to hold spot positions that I couldn't hold, and my futures positions would get liquidated. Later, I realized a simple truth: don't confuse "being right about the direction" with "being able to handle the position." Now I focus on two things: first, determine the maximum loss for this trade (like the cost of a cup of coffee or a meal), then work backwards to decide the position size, so that no matter how much the price swings, I won't lose sleep. For spot trading, buy and sell in batches; don't go all-in and then stare at the screen until you shake. Futures are even simpler—use leverage low enough that it feels boring, and just set your stop-loss and get to work. Recently, before and after the main chain upgrade, everyone has been guessing whether projects will migrate; I’m not sure either, but I will cut my positions even smaller... Anyway, don’t let your emotions place your trades.