This will ensure your light source and the webcam are always facing the paper.
Try taping the webcam to the side of the desk lamp and then positioning the desk lamp so it shines right on the paper. Tape the webcam to a surface so it is at the perfect angle.
Make the storyboard process easier by focusing on one scene at a time, breaking down each scene into a series of shots. It can be overwhelming to try to take a long script and turn it into a film.
To help you get a better sense of your story idea, you should write out a rough plot summary or a synopsis of your film.