Yes, one of the ways to make money in investment is to buy at a low price and sell at a high price. Even now that we understand this truth, we cannot keep holding and not selling.
It is easy to hold on for a period of time, but ten years is very long. You can invest a part of the money now and treat it as a loss. Wait ten years later and see how many times this part of the money can be doubled.
To be honest, I may not be able to invest my money and leave it alone.