the best way to study for the shelf is to gain a breadth and depth of clinical experience. are you at a university hospital? are you actively participating in rounds, reading about your patients' ailments, trying to come up with the next step in management? are you preparing topics to discuss with your residents and attendings? it sounds like you're doing the right things when you get home but you may not be making the most of your time at the hospital (which is understandable, it takes 3rd years a while to get the hang of learning in this new setting)
I whole heartedly disagree. This is an important step in becoming an advanced practioner, and a skill you need to be a resident. Participation is crucial. Differentials are crucial. You are training more than "knowing stuff" and this sort of engagement makes you a good doctor. But this is the trap medical students fall into. They belive that if they do all of this that they will somehow acquire all the knowledge the need. It won't happen.
Medicine (all fields) is about experience. The more experience you have, the better you are at it. The more "reps" you do, the stronger your mental "muscle." But as an MS3, you just aren't there in the way of reps. You handle 1? 3? patients? The interns have half the service. THe resident has everyone. As you get better at it you get more responsibility, and with more responsibility, more reps. When a resident is a third year, if she has read on her patients every time, she will have quite the repitoire. How many MEN2a will she have seen? How many pituitary adenomas? How many Sideroblastic anemias? Probably few, if any at all. Which means you have to extend yourself BEYOND your patients.
That is why I recommend sites like onlinemeded and supplemental texts that are designed for the shelf.
as for peds specifically....i found it to be one of the hardest and least forgiving shelf exams. A pass in peds isn't the end of the world if you want to go into it....what's done is done... just do your best from now on and then rock your peds sub-I
Now this I agree with. Peds was my hardest shelf (abeit my first). And choosing a field like pediatrics means that you are not competing with the ENTs, Orthos, and Ophthos who have to get all honors in every rotation. If what you want out of life is to be a good pediatrician, you DONT have to go to a top brand school; they breed researchers and fellows more than they do clinicians, and you can get solid training at a tier 2 program.
Dominating the socks off of your sub-I is crucial. On that end, its about being a good doctor, and there is no Shelf to cloud your potential as such. If you've done the right things in teh way of your team, your patients, and your rounding, you will do more than quite well in your sub-I.
Also have some bull story in your personal statement about personal growth and coming into your own, ready to tackle residency, burden of transitions out of the classroom and blah blah, to make it sound like this "failure" (which it isn't, really) was really an "opportunity" (which it isn't, really, either, except to teach you how better to prepare for multiple choic exams)