If you are looking to become a freelancer in script writing then some important skills you are going to have to have and learn are, A good creative mind, some form of knowledge about how to write and script and how it will have to look. As well as a creative mind you will also have to be able to come up with original/new ideas. Having effective communication skills is an essential in media as you will have to be able to sell your product, and also you will have to be able to take responsibility of your own work and know if you have made a mistake or not.