Thirty years ago my older brother, who was ten years old at the time, was trying to get a report written on birds that he'd had three months to write, which was due the next day. We were out at our family cabin in Bolinas, and he was at the kitchen table close to tears, surrounded by binder paper and pencils and unopened books about birds, immobilized by the hugeness of the task ahead. Then my father sat down beside him put his arm around my brother's shoulder, and said, "Bird by bird, buddy. Just take it bird by bird.
Toni Morrison said, "The function of freedom is to free someone else," and if you are no longer wracked or in bondage to a person or a way of life, tell your story. Risk freeing someone else. Not everyone will be glad that you did. Members of your family and other critics may wish you had kept your secrets. Oh, well, what are you going to do? Get it all down. Let it pour out of you and onto the page. Write an incredibly shitty, self-indulgent, whiny, mewling first draft. Then take out as many of the excesses as you can.
There may be a Nurse Ratched-like listing of things that must be done right this moment: foods that must come out of the freezer, appointments that must be canceled or made, hairs that must be tweezed. But you hold an imaginary gun to your head and make yourself stay at the desk.