I often can't hold onto spot positions either, wanting to cash out when it rises a bit, and wanting to buy more when it drops a little, ending up losing myself back and forth; as for futures, don't even mention it, with a large position, the mentality just blows up, honestly forgetting the phrase "how much loss I can bear."

Now I set a strict rule for myself: before entering each trade, clearly write down the maximum loss I can tolerate, and when I reach it, I exit, no arguing with the chart.
Recently, everyone has been talking about staking unlocks, token unlock calendars, and the anxiety over selling pressure, my approach is even more cautious: smaller positions, multiple entries, keeping cash on hand, better to miss out than to hold on stubbornly.
A colleague next to me even said, "Why don't you go all-in," and I could only reply: "I'm just a small nobody, surviving is more important than being right or wrong."