Surgical recall is terrible for the shelf exam. It's only good for pimp questions, and if you wanna focus on the shelf, try to find Pestana notes and just read that. Classmates of mine have used the NMS casebook which I've heard good things about. I was given CaseFiles: Surgery for free, and it was an ok source, but Pestana is KEY imo.
And yes, surgery hours are brutal, but I'm sure there is downtime where you can either go to a library/lounge and read
Always have something to read in your white coat pocket, that way on busy days where the above won't work, you can spend some time doing a quick read. So, while waiting for your intern to finish dictations before you do that I+D or dressing changes, you can read for 15 mins. Or...while waiting for the OR to get cleared up and for the patient to arrive at the OR, you can read a bit.
Or...if you are able to take an hour or so at home and read. But, I know for surgery, this can be a bit tough, seeing as the first thing on your mind is to 😴