Many short memoir articles or essays are being published in various publications. My first recommendation for anyone having trouble getting started is to concentrate on one story, one anecdote, at a time. My first national publication was a memory from third grade of being snowbound in a country school house where I lived with my grandmother. About ten of my short memoir pieces have been published, mostly in the local newspaper.
When I got serious about writing a memoir, I already had those articles plus some poems and other pieces, mostly animal tales, that I had written for family entertainment. The hurdle of getting started was already cleared.
Glance through your favorite magazines or those on a news stand. That enticing article about an exotic island? Memoir. Catching that gigantic swordfish? Memoir. Surviving a dreadful disease? Memoir. A humorous take on your date from hell? Memoir.
Even if you have no desire to write a book-length memoir, writing short pieces based on your experiences can potentially be rewarding, maybe even financially.