So I just finished taking it so here's my advice. First off, KEEP IT SIMPLE. There are no gold standards like UWorld or SUTM like with IM and you only have a month (or at least that's how it worked at my school).
My strategy: I already had IM right before so I was a bit lucky. I got through Case Files once (it's pretty large). "Google 274 Step 2 Reddit". One of the top hits is a guy who's outlined lots of good resources for shelves including Case Files for Family. After that, I read the Ambulatory section of SUTM once as well. For questions, there's no NBMEs and there's no UWorld. You can use AAFP but I didn't because I heard they vary in quality and many are too detailed in the wrong way. If you do want to use them, make sure you register now because it takes a few days for them to approve your access. For questions I think the BEST resource is the 2012-2015 inservice exams. Our school provided them to us on Blackbord. They were 240 questions each and were pretty short less time-wasting questions compared to IM/Uworld which was good for my ADHD brain and the explanations in the seperate PDF answer keys were better than UWorld frankly. I learnt a lot from them and I think it got me a few points. Other than that, be aggressive and see lots of patients. Ask your residents loads. FM residents know tons of information about everything so they're really good resources to ask, but make sure you do so at appropriate times.
Also may be random but this has happened 3/3 times in rotations. On rotations some attending/resident pimps me about a minutiae that seems ridiculous and says this will be on some board for you down the road. Turns out that was directly on my shelf and turned into a gimme question I would have made an incorrect guess on. After that, review pediatric milestones with a good table, review USPTF Grade A/B guidelines (you should already know most from Clerkship). For vaccines know when the adult ones are given and which ones can't during pregnancy. As for pediatric vaccines, DONT memorize that schedule. If you must, look at trends, like for example Measles and Varicella are given a bit later than DTap/HepB and you can somewhat reason through it. Then review MedBullets for Pediatrics Step 2/3. That'll give you a good idea of the common childhood rashes/infections like HHV-6, Epiglottitis, Bronchiolitis as well as management. Most are supportive but some like Measles have tiny things like Vit A which decreases mortality. Know Centor's criteria for Pharyngitis because that's very high yield on Clerkship and Shelf and know which antibiotics are first line for various things and then which to use next. Had three questions where the person was allergic or first line was contraindicated. Also, you should be strong in Diabetic work up after a month but if you're not, review that as well as well as what preventions need to be done. For MSK, you need a detailed review and SUTM does a good job with those. Lastly, COPD/Asthma stages and each corresponding therapy should be memorized. That's the bulk of it.
The FM shelf was on the easier side and so far my difficulty rating would be:
(1)OB>>>>>>>>(4)IM>(5)Family=(2)Neuro>>(3)Psych. That being said, I did OB first and Family after Internal.
Also, on the shelf be careful because with a few you can't change answers and I had 8 on mine which were part of sets so I got 2 wrong there so I don't know what to think of that...Time wasn't a huge issue compared to IM/Neuro/OB so take your time. Always go with the less invasive procedure if stuck and for behavioral questions never say anything even borderline offensive to the patient and ask them the politically correct open-minded questions.
Edit: 91st percentile! Highest I've scored on a shelf thus far. Only wish I'd honored Internal instead, but that's ok.
