Do not invest all in single coin, invest in multiple coins always, investing in single coin can be a risk.
Do listen to others but invest only after doing your own research. Good luck
You are right not to stake or buy a single altcoins because when the price falls you do not have back up altcoins that can be supported in case the altcoins you bought fall it is more profitable because if you buy more altcoins there is a chance of x2 or x3 your investment when you buy more altcoins.