I think almost everyone has made mistakes in the past, and that's what makes us who we are today.  I think your friend was wrong in predicting the Altcoin he held.  He should have cut losses when he saw the coin falling further, and stopped hoping it would rise.  Let him accept his loss and use it as a lesson to move further.


I also have make mistake. I left my tokens on the market in 2018, and when I returned in 2021, many of my tokens were worthless and several exchanges had died.  I also once invested in a small coin that had a fantastic rise, and I lost everything in a week.  I still hope it will rise again, but in the end the coin is completely dead and worthless.

So we have to be careful when investing in Altcoins.  We have to really do analysis and act quickly when the market is unfriendly.  It is better to turn around and lose a little than to persist then lose everything.  Invest in top coins and choose at least 5 good coins to minimize losses. And hope we don't fall into the same hole twice.