keeping a few different coins is indeed one way to avoid losses on one coin when the price falls, it will be very risky if you save your financial investment only on one type of crypto currency.
It's not really, even if you keep different coins but the entire market falls, the effect is still the same.
Diversifying is a method to minimize the risk, not to avoid the risk.
however, if I have to store crypto currency types in a swallow I have never experienced it, I saved some of my ASSTs on several different wallet platforms.
Waves platform is good but affected with bear market, overall we are losing now if we have not invested early, but the chance to grow is still here.
We don't give up this early, holding is still one of the best strategy in times like this, hope that it will recover and we will see some good rise.