Its too late to regret now, we cant re-select, but we shouldnt regret it. After all, all the decisions are made by ourselves. Its because of our greed that we miss the best time to sell. Now that we are in a bear market, its hard to escape. The only thing we can do is wait, even if no one knows when the bull will come.
Certainly, I used to regret it but now, I forgot everything. If a mistake is made, it is better to think about this lesson, forget everything bad, and go forward. I have invested in the cryptocurrencies again.