When should Bitcoin be sold?

In fact, there is really no completely standard answer, as everyone's actual situation is different. To put it simply, what do you want to do with Bitcoin?

Some people just want to make a few tens of thousands to improve their lives, and once that goal is reached, they can sell.

Some people just want to change to a good car, and you can naturally sell it at that price.

Some people want to change their house, and when the goal is reached, you can sell it. Some people need money urgently, so of course you can sell it anytime. Some just want to make some money, and when the goal is reached, you will naturally choose to sell.

Some people just treat it as savings, so the price doesn't matter to them. They invest spare money that they don't need urgently and just keep it there. Some people want to wait until Bitcoin can become mainstream currency, so they can just wait slowly.

The Bitcoin market is too free, without constraints, allowing for unrestricted movement. When the amount of funds you hold is amplified, it often becomes very difficult to control the emotions of gain and loss.

So, don't ask when you should sell Bitcoin. If you feel you have reached your goal, then you can sell.