The quickest way to finish writing your book is to WRITE IT. Don’t make this complicated. Pick a specific time of day that you are most relaxed and most creative. Use that time to write for the next 30-60 days non stop.
I am a late night writer and so I get my inspiration around 2am. I schedule that time in my calendar as a date with myself, the house is quiet the kids and hubby are asleep.
Sojourner Truth could not write but she was an author. She used her book that was a narrative to support her on her mission. Sojourner never learned to read or write, but she used what she had, to get what she wanted.
Excuse me what did you say your excuse was again?