Hmm, I don't really get this your question because you need to be specific of the kind of investment you are dabbing into. There are so many type of investment even in the crypto world. You can buy coin and stake it, you can buy and trade, you can buy and hold etc.

It all depends on the type of investment you are looking at and how long you want to invest. If you intend to invest for more than 3 years in the crypto world then you have to either buy coins at this dip and stake them so when the price of those coins goes up, you can sell them as well.