Dealing with bad reviews

A budding writer called BEX emailed me today, having been hurt by a review of her work in progress: "I hope this is OK to send but I would like to pick your brains about something. Next year, I’ll be self-publishing my debut novel. I’ve chucked the plot about in a private author group only for it to get torn to shreds and it triggered something inside me, spiralling me down a stressful pit of despair and asked myself ‘am I good enough?’ "It then brought on the concern of how do I take cr...