Losing money in crypto is normally happen, that is why we should have to prepare any losses and most importantly take a mindset that anytime our invest will get loss and never panic then slowly cover up all the losses.
The point is that every investment must always be able to minimize losses through in-depth strategies and analysis, although everyone can always be ready when they lose, but everyone does not want losses through investment.
if you buy coins try to use free money and don't need to use the money in the near future, so if your investment decreases you can wait until it goes up again, instead of having to cutlose because you need the money.