hey guys, so i'm in my 1st yr. of medicine as some of you already know. I thought that i would first have a broad focus as to what i want to be in the future and i seem to be interested either in cardio-thoracic surgery or neurosurgery. I want to know as to how 1st yr. students should prepare themselves if they want to choose any of the above options for their careers. How many hours should they study?? Should they limit their social life to weekends only? And moreover, what's the kind of competition for these type of fields (surgery-related)...?