hey man,
i got a lot of advice here, so i wanted to try to give back to the forum.
my m1 year i didn't even know boards existed. i just tried studying hard for class, and despite busting my ass, was always kinda average. looking back, i woulda not worried too much about my grades, and spent more time with my friends and girlfriend.
m2 year i amped it up, worked hard, and scored well above a 250. so basically, my advice would be to just focus on school and try to have some fun m1 year. the one thing i'd recommend is using costanzo physiology and brs phys your m1 year, as those will be key books for boards. maybe try to get in some ortho research m1 year, and during the summer. m2 year, use your boards books from day 1 to study for your school curriculum...kill 2 birds with one stone that way. anyways, m2 year covers most of the stuff on boards (at least at my school), not m1 year.
good luck!