Trading is very risky, be it crypto, forex or stocks trading, but trading is different from investment. Assuming you waited patiently and buy crypto at the right time when the market has already declined in price, you will later gain. If you even buy and the price drop, the price will still increase back but this depends on the coin you bought, coins like bitcoin and other strong coins will increase and reach high price again higher than before for holders to gain, holding just needs patience, but this is the quality most people are not having, people prefer fast money, which is the reason they are losing.