In general, one has to get a rich person's mindset before one can get rich.
For a millionaire, gaining/losing an entire $10k occurs routinely because 10k is just 1% of a million dollars. If you a a two-millionaire, your net worth will almost always vary that much in a week. A millionaire does not freak out, sell everything, and go to cash when they lose $100,000 on paper, as occurred for many millionaires in the past 30 days. As we gain wealth, we gain the stomach to handle such moves and get used to them.