I know you're probably thinking you can work 7 days a week (M-F in lab and Sat/Sun as ER scribe) because you worked 7 days a week at school (classes, ECs, studying, etc). You really shouldn't.
The abroad thing, as mentioned in a few other threads, is all but ignored nowadays if they're the 2 week 'medical tourism' trips.
So overall I'd recommend having scheduled days off, enjoying your life a little bit, volunteer with Boys & Girls club, and applying early.