Diversify your investment to reduce your risk , don't put all your saving in stock or cryptocurrency. I think you should add some promising cryptocurrencies like Bitcoin, Ethereum and Ripple to your portfolio since they are very well know cryptocurrencies. you can be millionnaire if you pick the right cryptocurrency since x10 is nothing in cryptoworld but remember only invest in altcoin with high liquidity so you can cashout easily. When it comes to storing your cryptocurrencies, you need to store your erc20 and Bitcoin tokens in a hardware wallet.
Diversification is a game changer and that can save you from loosing money. Putting your savings in cryptocurrency is really a good decision but learn to spread it. Invest and hodl good coins so you can have your profit in the future.
Game changer but how... If you get the promising ones, you can get into rich world. If you picked the unlucky ones, nightmares would start in the night time for you always.