You may have an idea for your next script but unless you start to write it down it may never happen. Many a good idea has been discarded simply by not jotting it down. (You may need some software to help do this and there is plenty out there to help). Once you have your idea down then the next thing is to watch it develop in your mind. There are no rights and wrongs in creativity you just have to be convinced that this is what you want as many creators will always want to put their own interpretation on it. Stand your ground and stay committed to your dream. But it will be judged, it may challenge regular social trends and so for many creators they may find it challenging to read and even imagine your concept. Patience will pay but if you need to fine tune your script then do so. Each little tweak will show how well you are prepared and it will give your Director and DOP a good foundation and boundary to work from.