"A Lethal Weapon" wasn't my first book to write, it was the first book I finished writing. We all get these ideas flooding our minds, and we constantly get the need to write them down. But, how many times do we get full stories out of these ideas? None, mostly. They are just ephemeral thoughts that vanish while we are writing in the computer screen, and leave us there with a shameful writer's block.
It's happened to me, a lot more times than I'd like to admit. And it's happened to you, it's happened to everyone. That's why I like to see "A Lethal Weapon" not only as my first completed story, but as my first success. Not only because it's completed, but because it manages to fulfill me as a writer. It has a story that doesn't fail to engulf a reader into it, and it will hopefully engulf you as well.
Good luck, reader. Enjoy the ride.