The law isn't justice. It's a very imperfect mechanism. If you press exactly the right buttons and are also lucky, justice may show up in the answer. A mechanism is all the law was ever intended to be. ↗
If you can't think of what to write, tough luck; write anyway. If you can think of lots more when you've finished the three pages, don't write it; it'll be that much easier to get going next day. ↗