Just try don't panic sell and keep hodling, this is not end of Bitcoin. I'm sure the price will rise again...
If you have a money you can buy more Bitcoin again, I think this is the best time for buy because Bitcoin got a discount from panic sellers...

very right the price goes down making a purchase. you should be patient first because the price drops only a few days, I hope you monitor price movements for the next few days because if the price still moves down you will get the cheapest price. do long-term investments and wait for prices to rise to sell.
Yes I agree on that we need to buy some more coin and hold, because we ca n now have an advantage in buying than selling, I believe that selling is only good during the price is high, we need to buy more today and hold, and maybe we should wait for re price to rise up high someday.