I know a bit about it.
Essentially it’s gambling. All crypto investments are extremely high risk and subject to massive peaks and valleys on any given day. There’s no guarantee even the most stable of cryptos won’t crash tomorrow or if the most popular, like BTC, will have another skyrocket increase in price. There are “farms” that own massive percentages in certain cryptos and they could at any point decide the price by either buying or selling a massive amount.
As for their price themselves, cryptocurrencies never really became useful currencies and are still essentially only valued at what people will pay for them, not at what they will buy. Like BTC can take hours to approve a transaction (“get your transaction signed and on the ledger” in crypto speak) and it’s so volatile you won’t find many vendors willing to take that sort of risk. You can buy something for $100 with 0.001 Bitcoins but by the time the transaction goes through, the vendor will receive 0.001 BTC but it’s now worth only $75.
And there are a lot of con artists out there making bank off of it. It’s how the old adage goes, in a gold rush the only ones making money are those selling shovels.
What I’m trying to say is that you shouldn’t invest in crypto. Maybe if you have a few hundred or thousand dollars you don’t mind potentially losing, it’s not the worst idea. But definitely don’t view it as a good investment.