If someone ask me to give a risk taker award to someone i will probably chose you. Taking a risk is a part of life and we can't gain profit without taking risk. But there's a limit and you have cross it. How you can sell your everything even you know its a volatile. Anyways you don't need to panic, You should apply hard patience. Everyone is disappointing with bitcoins price but i believe next year will bring some good news for bitcoins.
Yes, the risk will always be there. So, if you invest with a cryptocurrency that is volatile, then you should understand the market analysis well, and keep in mind is do not put eggs in one basket. It's the easiest prevention to avoid the risk of big losses.