First of all, I do unfortunately agree that 'you should write a book' often is a way of ending the conversation and telling you you've overshared. I found that out myself.
Second of all, I don't actually know if your story is 'enough' to be a book - perhaps it is or perhaps it isn't. It does sound like the kind of thing a lot of people have gone through but sometimes it is about how it's written. If you really want to write then I would. However, a few things to consider:
You really need to look into the process and what's involved. For example, I don't know much about publishing memoirs (although I see later you mentioned a novel) but with most publishers you cannot send them if you are un-agented. Therefore it's likely you'll want to get an agent.
Getting an agent in itself is very difficult - they get sent loads of stuff. Even if you get an agent, then selling it to a publisher is not at all guaranteed. Even if you do get published, the chances of you actually making any significant money from it is small.
I say it not to discourage you but to explain that getting a book published is more like a dream of becoming a famous footballer or singer (extremely unlikely even if you're very talented) rather than a dream of becoming an accountant (which you can probably do if you work hard enough).
That means it's not just opening up word, rattling off a couple of chapters and sending to a publisher and then they go "wow that sounds great - please write the rest and we'll organise the book tour".
It's writing several drafts, getting beta readers (which means beta reading for them in return which takes time) drafting again, putting it in a drawer and editing again. It's writing several attempts at a query letter and getting feedback because they're so hard to get right and they are so so important. You might spend literally months on the letter. Then it's sending your query out in batches, reading every single agents requirements very carefully, and tweaking depending on whether you get anything back.
Your first 3 chapters need to be absolutely the very best they can be. But also, your entire book needs to be completely done and completely polished. If they DO like it, they will request the whole thing which you need to send through right away - not in six months when you finish writing it. Unless you're famous, nobody is going to take interest in an idea and wait for you to write it.
If you get rejected by an agent, you almost 100% of the time cannot send the same manuscript to them again, so if you mess up at any of these stages, you have essentially 'wasted' an opportunity with that agent. (And your choice of agents may be smaller than you think as you need to send to people who deal with your genre).
If this is the start of you having an interest then go for it but trying to get published is a big thing and a difficult thing. I have a relative that wrote a kids book recently - she wrote it in a couple of hours. The idea wasn't awful. However, she put no consideration into things like target age range, and did not do more than one draft. She asked me to look at it, but in the three hours it took to get back to her, she decided she no longer needed me because someone else in the family had 'already checked it for her'. This draft still had multiple very basic spelling mistakes. She sent it off, unsolicited, to every publisher she could find online, and instead of a query letter, essentially sent a "hi I've written a book hope you like" kind of email.
Like I said, her idea wasn't even awful, but instead of a year-long endeavour of making the absolute best thing she could, she didn't even bother with a quick google and spent less time than you would on a job application for Tesco. Writing a first draft of the book is like the tip of the iceberg.
So I think go for it, for a hobby if nothing else. However, I would also be careful about the fact you seem to still have trauma you haven't dealt with. Feedback can be brutal, and you need to be able to look at things in a logical way - e.g. what is sellable, especially when it comes to cutting things out or changing them. Are you ready for such brutal feedback about something so personal? Because the very best case scenario - someone loves it and wants to publish it - you're still likely going to get some really brutal feedback and things that need changing.