When the market is in bad condition and has not recovered yet, we make a quick buying strategy and sell quickly I find it very reasonable. I also often follow this measure to preserve my assets.
Buy fast and sell fast is not good now. It's only buying fast and hold long that can work in the current time. So we should really refrain from selling fast and should rather focus on investment to claim a part in the future wealth that if we don't invest will go away.