"You're going to fail" may be crappy advice....but there's an element of truth to that.
I'm sorry, but I honestly think that there IS a high possibility that you will fail Step 1 if you take it after third year.
Unlike Step 2, and unlike NBME shelf exams, Step 1 requires long blocks of DEDICATED study time. Step 2 and the shelf exams do not. But since there is such a wide range of material on Step 1 (much of which you haven't really thought about since first year), you need to study at least for 12 hour blocks a day for, at least, 2-3 weeks. This is regardless of whether or not you've already taken third year.
In your case, since you'll be SO far removed from the basic sciences, you might need even more time.
Third year is MUCH "better" than first or second year - but it's definitely harder. There was a lot more stress. I was a lot more tired. The day-to-day stuff of third year was infinitely more interesting, but when I came home, I was never in the mood to study for more than an hour or so at a time. And, in that hour, I had to study for the rotation or the shelf.
It's hard enough to study for the rotation AND for the shelf (which, by the way, are not the same thing - the stuff you see on the floors, and the stuff on the shelf, are totally different).
But if I also had to study for Step 1 at the same time, it'd be really, really hard. There's just not enough time in the day to do all that stuff. And even when there is time, you're too tired. Or you want to do other stuff...like, you know, talk to people who are actually healthy and not sitting in a hospital bed. You might even want to date - I don't know. But studying for Step 1 during third year? Uggghhh. Even the
idea horrifies me.
Honestly, if needed, you might need to take a leave of absence after 2nd year, and take Step 1, and then enter rotations late. But don't bank on being able to keep upon the basic sciences while doing your rotations. There IS a high possibility that you will fail. Sorry.
P.S. Correct me if I'm wrong, but at Baylor and Penn, they take Step 1 after a few months of rotations. They then get a full month off, and then take Step 1 after studying for a month.
This is
DRASTICALLY different from what you'll be doing. You'll be taking Step 1 after an entire YEAR away from the basic sciences. Your brain will be fried after long rotations like surgery and OB. And you won't have a month of dedicated study time - you'll have, at most, a couple of weeks. Plus, in those couple of weeks, you'll need to get started on ERAS, away rotations, getting LORs, etc. So the situations are not comparable, in my opinion.