Bitcoin Cash just lost 20% of its value in 5 minutes. 

Fortunately, I had my Litecoin, which also collapsed in value, set to automatically sell after a certain point, so my losses have been modest. 

I normally don't offer crypto advice on here because I think 90% of it is bullshit, but just this once I will say something - make sure you have a way of automatically selling your crypto if the price drops a certain amount. Currently it is about 1AM here and I'm drunk, so I am very glad I do not have to make financial decisions! Instead I can just watch things burn, and then buy up more crypto when the prices are low.