MEMOIR TIP: "The most important things are the hardest things to say," Stephen King says in On Writing (a fantastic book, by the way. Be sure to read it!). This is what makes memoirs compelling, although it's not easy to do.
When tackling difficult issues, make sure you dig deeply. "Stories are found things, like fossils in the ground ... Stories are relics, part of an undiscovered pre-existing world."
In the case of memoir, you're digging into memory and experience and the more honest you can be with yourself, the more a reader will engage. Honesty is compelling.
This is your story; don't be afraid to jump in. Be bold and say what you've been wanting to say.