i would not advise it, i'm also repeating the leaving and did honours accounting last year, i found it difficult so im dropping it this year and picking up history in its place. but it all depends in where your strengths lye.
Yes the whole subject is basically learning, but very understandable, it does take a lot of time as a subject and you really have to make sure you keep on top of it! With the right teacher who knows your time length you should get it done! Best of luck hope it all works out !