What did you learn about memoir writing?

Writing a memoir on an event in my life was something new to me. I never gave myself the time of the day as far as looking back on old times and seeing what I learned from those times. Starting off on writing my memoir, I thought it would be just like writing a regular story. In a way it is but I found out there is a lot more to it than a regular made up story. Its real, therefore you have to make the readers believe how real it is.
On my first draft of my memoir I over did it on quotes and useless sentences. The quotes I used were true, but boring and did not get straight to the point and the sentences weren't of high importance. The reader would have probably thought I was stalling and would soon get tired of my story. Overall, I learned not to put unnecessary things into my writing pieces whether I am writing a memoir or a report.