DeFi yield-farming is a craze, right now, there's lots of YouTube videos on the subject.
Starting on Monday, Cream is allowing Binance Smart Chain to participate in the yield farming, bringing BCH, XRP, LTC (finally gets a use-case, lol), etc, to DeFi.
Impermanent Loss is one of the risks in addition to scams (rug pull), smart contract bugs, hacks/exploits of the smart contract. I Degen'ed with irresponsible amount of $ is how I learned to yield farm, not financial advice but I only experienced IL once on a highly volatile crypto $based, and if I only hang on, there were many times the coin pumped and the IL would not have occurred.
Yield farm on good projects, dyor, high-risk/high-returns. There's lots of opportunitie$ right now in DeFi.... I'll say DeFi has only started, but others will say it's at the end.