Sorry to tell you this, but - welcome to the practice of law. That class is what you do in practice. Many lawyers point out that it's the ONLY class that has anything to do with the practice of law.
LRW is to real legal practice as playing Microsoft Flight Simulator is to flying a 747. I love actual legal writing. LRW assignments were probably the most annoying academic assignments I've ever done.
In my experience, legal writing class assignments are basically the same as litigation practice. Roughly the same format, essentially the same process of research and writing, same style, etc. The only difference is that the substance of the class assignments is designed to be a pain in the ass. In practice, the issues are usually more straightforward than that--but certainly not always.
I sort of made it sound if you hate the class you'll hate legal writing in practice. That's not true. Like you, I hated the class but I don't mind it in practice. But that's because I've become used to legal writing, not because the two are different.