Anxiety about my kids' future is destroying me

I can't stop thinking about everything that could go wrong. My oldest is starting high school and I'm obsessing over grades, college, whether he'll make friends, if he'll do drugs, literally everything. My wife says I need to chill but I can't turn it off. It's 3am and I'm lying awake thinking about student debt he might have in 15 years. Anyone else dealing with this? How do you stop catastrophizing about your kids?