Stop holding the coin when the owner of the coin has no desire or effort to develop the coin in accordance with the existing roadmap
yes I agree, what do you want to do, try to keep holding a coin but there is no development in the future and maybe just left by the team
it's best to just sell when there is still a price on the market and switch to buying other coins that have good potential by consistently working on the coin project in accordance with the roadmap that has been made