An investor can take profit on his investment. If an investor wants to sell his Bitcoin for low profit, he should remember that it may not be possible to get Bitcoin at the price at which he bought it. It is not always possible to buy Bitcoin from a dip. Therefore, it is better for those who have been able to buy from relatively dip to hold it for a long time. The goal of every investor is to make profit, but if someone misses a big opportunity in the hope of a small profit, he will regret it later. Bitcoin is gradually becoming more valuable. Therefore, an investor can benefit the most if this asset is considered as an asset for life rather than an ordinary asset and held for a long time.
For anyone starting out with Bitcoin investment what really matters is accumulating as much as possible before the next cycles , anything pertaining taking profit should be disregarded... investing in Bitcoin should be taken for long term so even after reaching a status of having enough stashed up already to start taking profit, investor shouldn't just sell his whole coin at once.
The supply of Bitcoin keeps reducing over time and if everything is in place then the price should still go high so selling all holdings at once will be dumb...for an investor to stay in the game while he takes profit , he just need to sell small fractions out of his holding as regarding to how big his accumulation has become over time . This doesn't stop buying but most investors at such stage will just buy dips if they wish to , could even be out of profit made since they will be buying cheaper..
The moment an investor opt-out at once , it might be very hard to buy back and this is why selling holdings high to buy back low strategy is not a good strategy( it fails).. investor might end up buying higher again thus loosing some funds .