There comes a time in every writer’s life when they just have to let their script go. I know it’s difficult, but there is a point in editing when you just don’t need to do it any more. Beyond that point is when you edit out of fear. The fear of rejection. The one thing that’s worse than rejection is inaction. If it’s a good script, great! If it’s not, than you can use this as an opportunity to learn. Either way, it’s a good thing to move on.