Just use common sense when you invest it's that simple

Buy low, sell high and by low e.g. wait for red candles and oversold flashing and high when a spurt of positive price appreciation and offload then if you like short to medium term trading

Or just accumuldate at a set price point and HODL for the long haul

You pretty much can't lose when its this cheap unless there's a particularly unexpected major further downturn on the tradition stock market indexes

Also try checking this metric for some over exaggerated fundamental indicator https://alternative.me/crypto/fear-and-greed-index/