If you are planning on writing a novel, do some exercises to warm up. Write interviews with the characters in your book. This will allow you to get to know them better. They can be as short or as long as you want them to be. Heck, why not have one of your characters interview you? Work on an outline, write up brief biographies of your characters; whatever you need to do, get the words down.
If you don’t write every day, what’s the point? You need to develop the habit of writing if you want to make progress in your chosen life path. After all, practice makes perfect. At least that’s what we tell ourselves when we write. Remember, once you get something written, you need to edit it and probably revise what you wrote; but that’s part and parcel of being a writer.