we can learn how to be patient with bitcoin and stay calm to see the price always changes in anytime. there will be a time for the price to go up again and I think when the time comes, we can sell our bitcoin at the highest price. but we have a chance to sell right now if we cannot hold for a long time but the profit is not too big and even we can get lost because we sell at the low price. and I think we only have a chance to buy bitcoin again for now until the price is back to increase again.