Classes aren't hard.....what to focus on?

1.5 months into MS1 and so far it's not too bad (expecting it will get more difficult). I'm in the top 5% of my class without straining myself too much. Is there anything that would be higher yield for me to focus on instead of just my classes? After all, they are just P/F with no internal ranking. I feel like its too early to start thinking about step 1 and I don't have enough knowledge to really study for it yet. I'm aiming for some specialties that happen to be more competitive.... Classes aren't hard.....what to focus on?
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Source Type: forums