For spammer codes and exp farming, check this post.
What to focus on... well that depends on what you prefer really.
First, I'd recommend you set on a goal.
There's BLoD(Blinding Light of Destinty), NSOD(Necrotic Sword of Doom), AFDL(Archfiend Doom Lord), Awe Set, The Tier 2 Rep(?) Classes(Blaze Binder, etc), Legion Castle, Nulgath Nation House, Evolved Nulgath Sets, and many more!
You won't really function well without a goal in mind. I'd suggest you work on that first.
And for your last query, eeee.e...r... no I can't really help you even if I wanted to sorry.