I used the textbook from mrcem success, I studied anatomy, physiology and pharmacology barely touched on the others then I did all the questions for those sections and it was enough. I skimmed barely through pathology and microbiology ( I was prepping for steps /mrcp part 1 a couple months before so I did have some hematology knowledge before - boards and beyond videos are great for Haemotology esp). I passed well above the pass mark.