How far can my sledge travel?

After the screenwriters festival my sledge of scripts was happily barreling along with great momentum. Back in the real world of stressing about kids exams, parent's evenings and general knackerness I feel I have hit the up slope. The amount of work I need to do has hit me. How long will it be before I can completely rewrite Granny's Little Helper? I have started but it is a huge job. And what about the other things I want to write? At the moment I am twittering a story about the Bedbugs of New York on Vacation and this is terrific fun. There is SO much I can do with that concept. Perhaps I need to find a script developmentncourse where I can take my script. Or should I just book more snow to glide on?