If you're new to #bitcoin, and most are, it can be painful to watch your investment drop 25% in short order. Some think to dump and run over fear that their savings will completely disappear, but this is a mistake. Unrealized losses are not losses.
It's important to remember that you didn't "lose" any of your bitcoin. There will always ONLY be 21,000,000 bitcoin in the world, and folks will always fight for a piece of that. With a fixed supply, and long-term demand signals on the horizon, the price will continue to go up... "forever".
"The time to buy is when there's blood in the streets, even if it is your own." - Baron Rothschild
Here are two videos to help you through this. One is just 10 minutes, and the other is a podcast with great perspectives and data-backed information.