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.
isn't it a good time to buy some kind of coin? how do you think the profit will be more if you wait for a stable price where the average coin will have a slightly expensive price?