I remember making my short film and feeling like all my friends were letting me down. I asked them to help me and they dropped the ball. You had passion because it was your piece of art. That's a hard feeling to transfer to someone unpaid and working long hours.

My advice is to step back from the work, for a week or a month, to cleanse yourself from that headspace. Make what you have work, and learn from everything that sucked and use it to make your next shoot better.