It is not end of the world ,that is the thing that we need to keep in mind, as long as we keep that in mind, we should be fine. I get that we are not going to end up with anything that crazy, we should probably see this as normal and not really anything bad.
Losing money happens all the time, and if we keep losing money then we are going to be fine as well. The thing is that, people are reacting as if everything is ending and the world is about to end. That is not the case, if you have your life ahead of you and some years to keep working, you can always recover from absolutely anything. Plus, even if you can't the road to try to make it better is the life you live, that is fine and we just consider that as our life I suppose, still better than the alternative.
That's very VERY easy to say, but it's absolutely hard to do. The decisions we make, especially investment/trading decisions, are most of the time controlled by our emotions. If a person panics easily, then he/she could panic easily as well. WE should have emotional stability at all times. But how do you have that in investing/trading if your portfolio is full of shitcoins that might crash to ZERO?

The solution is simply to HODL Bitcoin.