There is no unified answer for the best selling time for Bitcoin; it depends on individual planning and needs.

If it's to improve living conditions, one can take profits when targets are met; if looking to purchase large assets, sell when the price is right; if urgent funds are needed, sell at any time. Some investors aim solely for profit and exit when target prices are reached.

Others treat Bitcoin as a long-term savings, investing spare money and holding it for the long term; some see its potential to become a mainstream currency in the future and are willing to wait patiently. Bitcoin trading is free without mandatory constraints, but as the size of the holding increases, investors can easily become anxious about gains and losses.

In summary, having clear investment goals means that achieving those goals is the appropriate point to sell.