Question: Right after the event, I felt shocked and depressed. I've been engaging in stocks for about a year now but I've never encountered such a big jump in such a short time. What I'm planning to do is just wait for it to rise again, which I'm not sure when. (Well, who is?)

**What should my mindset be?** 

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I understand that there are already lots of questions regarding **When should I sell?** or **Should I set a stop loss?** For me, this question is not 100% about how to protect your money, but it's more of **In extreme cases like this, how should I mentally prepare myself?**

I anticipate that there will be comments/answers like "we can't give advice if we don't know the exact stock in topic" or somewhere along those lines. I want to pre-emptively tackle this and say that this question is not only for my specific current case. I'd prefer answers to be generic for everyone facing the same problem.

Answer: 
If you own the stock today, it doesn't matter what it traded for yesterday. If XYZ is trading for $40 and you own it, ask yourself if it's worth buying today for $40. If it isn't, you may want to consider selling it and buying something that *is* worth $40.
Did you read [Soichiro Honda](https://en.wikipedia.org/wiki/Soichiro_Honda)'s biography? He is the founder of [Honda Motor](https://en.wikipedia.org/wiki/Honda).

His plant was destroyed by an earthquake, and then he proceeded to build another factory which, as World War II broke out, was lost again with his money, and many of his friends', but **he started again**.