Of course, it is worth it. If you want to write, write! Nothing should stop you!
My book was published by a small publishing house in 2005. I wrote about something with a large audience, following the "write what people want to read" rule. It sold well. I won't get into the rest of my writing experiences now. I'll just share current information that may be helpful.
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@Ren is a published author (both fiction and non-fiction) and may offer some tips if he visits the forum. You could also visit his YT profile. He has a few videos about his books.
Memoirs don't typically sell well unless they're written (ghostwritten) by celebrities. So, while your story will be worth reading, it may be harder to find a publisher than it would be for some other genres. Several friends have self-published memoirs and have sold 200-500 copies of their work. Publishers picked up a few, but these people experienced significant moments in history or pop culture.
Keep self-publishing open as an option. It will give you the most freedom and may be the best option if publishers don't offer you a contract that works for you. The downside is that the literary world is an insider's club, and some options won't be open to you. For example, the NYT best-sellers list does not include self-published books.
Do not publish with a vanity publisher. Vanity publishers make you pay for everything up-front and then make it look like you were picked up and signed by a publisher. Vanity publishers are the same as self-publishing, except it seems like a publishing house signed you.
Traditional publishers will give you a contract. They pay for printing, editing, promo, etc. Pay attention to the contract, what they offer, how they will promote your work, and for how long. They will likely offer very little money (For example, $2500), but if they hire the editors, pay for the printing, promote your book, and get it onto the shelves at the bigger booksellers, it's worth it. Many publishers will promote your book for a short time, or expect you to do all your promo. Some publishers will expect you to buy the books that don't sell within their time limit.
Sometimes, small publishers will turn down an offer to publish your work and offer to advise or mentor you for a fee instead. That's shady.
You may need to hire several editors. They only do the job you hire them for. For example, developmental editors help with the story. Line editors comb your work for inconsistencies, flow, and (depending on the editor) plot. Copy editors correct grammar, punctuation, and spelling. The cheap ones aren't worth the money, and the experienced ones are expensive. Hopefully, you can find a hidden gem at a fair price. Ask for samples.
Do not sign exclusive deals with sellers.
Get beta readers! I recommend giving betas a questionnaire (so they know what kind of feedback you want), a deadline, and payment. Your beta readers must understand that it is a job, not a favor. Pick beta readers who will be interested in the content and will offer honest and constructive feedback.
You'll need an agent if you shop your manuscript to traditional publishers. Agents are strict about the work they'll consider, so read carefully and make sure you are marketing your memoir in the correct sub-genre.
This is exciting! Please write your memoir! I'll be rooting for you, and I will read it!