Read this article very beneficial !

1. Trading Without a Stop-Loss
The Mistake: Watching a token drop 20%+ while hoping for a bounce.
The Rule: Always set an automated stop-loss before entering. Hope is not a strategy.
2. Over-Leveraging
The Mistake: Using 20x to 100x leverage because a trade feels like a "sure thing."
The Rule: Keep leverage conservative. A 1% market wick can liquidate an over-leveraged account instantly.
3. Revenge Trading
The Mistake: Immediately jumping back into the market to win back lost capital.
The Rule: Walk away for 24 hours after a big loss. Trading with anger leads to worse decisions.
4. Chasing FOMO
The Mistake: Buying into a token that has already pumped 40% out of fear of missing out.
The Rule: If you missed the entry, you missed the trade. Wait for a pullback or find a new setup.
5. Fighting the Macro Trend
The Mistake: Trying to long a bear market or short a raging bull market.
The Rule: Zoom out to daily/weekly charts. Trade with the dominant market momentum.
6. Indicator Overload
The Mistake: Cluttering charts with too many indicators, leading to analysis paralysis.
The Rule: Keep it clean. Focus on price action, market structure, volume, and one or two tools.
7. Forgetting to Take Profits
The MISTAKE: Watching paper profits multiply and refusing to sell out of greed.
The Rule: Use a strict, tiered profit-taking plan. Lock in gains; paper wealth means nothing.
The Takeaway: Trading longevity is about managing risk, not having a 100% win rate. Protect your downside, and the upside will handle itself.