Since altcoin created the risk is always high but offcource also promising very high profit. Now only strategies and management of money that possible to reduce the risk. But actually if you make investment in ayears the risk is lower because in the longterm market cap of crypto will keep growth and also the demand will increase.
All inbestment is include risk so we mist care about this and not only the profit. We must be ready and accept that and bear this high risk, you should stop making investments in any coins. Otherwise, managing your risk and making wise investment are what bring you success. Dont worry, we can avoid the risk by well manage it.