You should really read The White Coat Investor's Guide for students by James Dahle. He's not a fan of debt, but there's math in there that assuaged my fears. I'll be borrowing about $250,000 total, which isn't great, but that's an absolutely reasonable debt burden for a future family doctor for example- you'll be making at least $200,000 a year. I promise you that you'll be able to pay your loans off.
Now once you start getting to the over $400,000 or even 6 or 800, that's the point at which you're in trouble.
I'm no financial advisor. But many med students in the country are borrowing north of $250,000, and assuming they match and get attending jobs, they'll all be able to pay their loans off within 3-5 years of leaving training.
But you need to study this and do the math yourself. That's what will make you chill out about it 🙂