As the trade war between China and the U.S. keeps escalating, investors have every right to be worried about the markets.

But Real Money contributor Stephen "Sarge" Guilfoyle suggested not to "worry about trading this market."

"Worry about understanding this market, so you have to understand and then you have to identify where your opportunities are, and where your threats are. This way you can adapt. If you can't understand, you can't identify, then you can't adapt," he said.

He also advised to sell some if "anything makes you a little nervous."

"You don't have to sell it all. If it's a name you like, sell some to increase that cash flow," he added.

Related. Jim Cramer: What's Perilous About Staying in the Market?

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