As long as you don't sell it, you have nothing to lose, maybe only the value in the portfolio is reduce, but it also picks the top coins and is likely to rise again after a while of decline so don't regret it and believe in the full investment.
Regarding shitcoin, this is indeed a risk that must be faced, because in every decline there will certainly be anxiety once the decline can become severe and difficult to return, so I always give a percentage of at least 20% because I don't dare to invest too much in shitcoin for me this is too vulnerable .