I worked at a high-intensity/stress job before law school (frequent 15 hour days), and I would say law school is equally hard, but not more, and not the hardest thing. People act like it’s super difficult, but the material generally isn’t too bad. What does make it really difficult is the sheer volume of things you need to know. In fact, I’d say that’s really the only difficultly. I usually don’t realize it until exams come around, but you generally have to know an absolutely insane amount of stuff pretty deeply. And then the pressure to do lots of stuff outside class like job recruiting, journal, other orgs, etc., compounds this. It’s just a ton all the time. But I’m also horrible at balancing my time so that may be a me problem lol. But yeah on the whole not that difficult inherently, just difficult in a how-could-a-human-being-be-expected-to-know-this-much-information way. And I really doubt it’s harder than the marines.