I think it's better if we hold the altcoins if they have suffered losses and buy more coins until there is an increase in the future. rather than having to accept losses, it is better to hold it if the latcoin has the potential to grow in the future. if what you have is an undeveloped altcoin then you better sell it and buy a stablecoin, so you can save the assets you have
This is what I do.
If I'm at loss, there's no selling that shall happen until I recover from that altcoin. And if possible and doable having a budget by that time, I'll buy.
If the situation permits that holding would be the best choice at that time, I'll have it on hold and won't accept the defeat of selling at loss. It's normal to cut loss but if you've been having a tremendous loss for that coin, it's the crucial part and you have to decide to hold or sell but I choose to hold.