I think the best thing to do is wait for the prices or the market to be stabilized before buying. The reason is if you buy now and the prices are still going down it's a loss for you so it's better to wait than to have loss. So, you can't tell if it's a great opportunity.
if you wait for a stable market price and then buy a coin then what can.
precisely when the price falls as this is the right time to buy coins, wait for prices to rise and then sell it will profit a lot.
note: but there is still a possibility that the price will be lower, so think about it as best as possible before buying the coins