Your 30 year old self will be fine. Stay the course, my friend.
You know, I think I'm having the opposite problem. I did some rebalancing yesterday, and I'm biting my nails about rebalancing some more tomorrow since the news is only getting worse. Part of me wants to open a brokerage account and start buying all these cheap stocks with my emergency fund! So many of these amazing companies at really low prices. Disney and Starbucks getting absolutely pummeled! I feel like I'll never have another opportunity to buy like this.
Of course, the Boglehead part of me tells me that would be a really bad idea.
So instead of opening a brokerage account... today I made some early car and student loan payments (both with interest rates 4+%). Gotta say, it felt pretty good.