Keep in mind that Nietzsche was the guy who said "what does not kill me makes me stronger." He believed suffering had a positive side: it transforms us.
If you became hyper-aware of (honest about) your urges, there would definitely be some parts that culture would frown on-- too lazy, too aggressively driven. But culture tries to force their own conditioning on you. For someone to really understand who they are and what they really want, they have to experience it themselves.
Which behavior is laziness and which one is healthy rest? For your purposes, only you would know, and it it would be revealed to you by spontaneous feelings and thoughts.
Following our essence and intuition definitely involves suffering, but you would learn from it. If you allow yourself to guiltlessly be lazy, you would see the effects of it in your life, and if you truly realized you hated those effects, you would change naturally.
Nietzsche's philosophy is all about "becoming what you are," and simultaneously "self-overcoming." It's recognition that some of reality is subjective (the psyche), and is therefore full of subjective, irrational urges. If you follow these, you'll definitely suffer, but perhaps you'll learn to organize them into effective habits, and become more free, expressive, and powerful, unified with nature in a way that makes the suffering worth the experience.
True, deep experience of what you want to do instead of just book knowledge about what you "ought" to do.