There is no need to invest your whole portfolio in single trade. Just invest 5% of your margin in a single trade. If a trade goes against your analysis, it's OK. you can DCA as well. Toady MaticUsdt went up when @CRYPTO HACKS asked for short. It break the previous high and went to 1.0947. Most people thought that it will go to 1.2600 direct but what happened, it suddenly dumped to 1.0450. all longs were trapped. 2 lesson from this, (1)use less fund and have DCA opportunity (2) Never doubt your analysis. Accept whether it lead you to win or loss.