If we see the history of Bitcoin, then it's pretty easy to see how Bitcoin recovered its price. It would take time to recover, but eventually it did. So at the end of the day, holders don't need to be regretful. I am talking about Bitcoin, not about any other altcoin. Because even though the Bitcoin price has recovered, many altcoins haven't recovered yet. Even those who bought Bitcoin at the top in the last bull run, I believe they are almost recovered. If they are still holding, they will be in profit within a couple of months. Bitcoin has given us a costly lesson that holders won't regret. We should take that lesson and keep it in mind for the future.
Surely Bitcoin is one of the most trusted coins cause the price recovers but one must wait for the right time to ensure that they will make a profit out of it. Some waited for years so one must invest only what amount they can afford to be stagnant for a while. Again cryptocurrency is volatile so there will always be a risk but bitcoin proven itself for years. Holders that wait for years truly won't regret investing.