Funny question. Do you even know anything about investment? Investment is all about risk. You invest your money doesn’t  mean that you must make profit. This is business and you will either gain profit or loss. So let’s assume that Bitcoin crash today and you have about 1 million USD in it, you should just forget about it. That’s the same thing that happens when you invest and there is profit, you go for it and withdraw your profit. By the way, Altcoins crash like everyday.