You have to decide what is extraneous and what is central. There is always more to tell. If you want to have a finished product, at some point you have to say "enough."
How did you get back?' asked Vautrin. 'I walked,' replied Eugene. 'I wouldn't like half-pleasures, myself,' observed the tempter. 'I'd want to go there in my own carriage, have my own box, and come back in comfort. All or nothing, that's my motto.' 'And a very good one,' said Madame Vauquer.
I always had this thing, when I was younger especially, I didn't want to do movies that much. I found they took a lot out of you and they were exhausting for me in a lot of ways.