Thing 1: If you haven’t spent any time with your characters, you can’t really know them.
Thing 2: Some characters will bring along their own friends and enemies, even if you only invited the ONE character to your novel.
Thing 3: It’s okay to write and rewrite and rewrite and rewrite and…
Thing 4: Writers’ inside jokes are the best.
Thing 5: Even though you created your characters, they will surprise you. Guaranteed.