Check out Brooke Warner's classes and She Writes - great community and resources. And this new anthology Warner edited, mentioned in this article.
Here's the quote -
"If you’re afraid of a big fallout, consider whether that fear might be your inner critic at work, making you bad and wrong for exposing someone or something that you’re not “supposed” to share. Going against the grain and exposing yourself and others is the number one scariest experience of memoir writing. You may need to be in dialogue with your critic to ease its mind so you can continue to write your truth. Remember that you are brave and in charge of what you ultimately share or don’t share, and you have time between starting your book and publishing it to make incremental choices and edits along the way."