You have to buy when the price is low. In crypto, it is very important to study the currency before investing money.

My friend spent months telling me how wonderful Bitcoin was and how he was making money, then he convinced me and made me buy it with the money I had saved, in just 3 days I went from 2,000 USD to 1890 USD. 😭😭 How can they say that Bitcoin makes everyone rich and is wonderful? Then they say that Bitcoin is not a scam. I'm almost giving up. I bought $BTC $SOL and $BNB
Should I sell it and buy other better ones that don't drop in price as much?