You just can't skip socializing a Rottweiler. Socializing your puppy while guarding them from disease and parasites.
Your recall is your cue to tell you dog to come to you no matter what. And, let's face it, dogs can be really really distracted.
No...seriously...take a hike. Or a walk, a jog, a run, a swim. Whatever you're able to do. Everyday would be great, but every other day is better than never.