What was we need to do there was only patience. Because every coin always give you a chance to be survive your self by bouncing back near your buy rates.
You need to stop and evaluate again your plan, find the mistakes and fix it, if needed change it. Even you only have 20% it will be enough to get your fund back, keep optimist and disciplines. I don't agree with " hold " because it's depend market volatility, chose wrong coin and keep hold it will create new bankrupt person. Every strategy need patience but sometimes you need to change it become " cut loss ".
Recovery and development always start from fixing mistakes, so a review of the project and the method we invest is essential in this story. Next, the holding method should be handled according to what you have mentioned, patience can be good but it's not always good in all cases, when we only have 20% of the capital remaining, we should understand that the project we invest is too bad, the rate of continued loss will be higher if we persevere with it, giving up decisively will at least have the opportunity to preserve the remaining capital and seek other opportunities