I’m so sorry that that happened to you. To answer some of your questions - Yes, Lemmy can be an anonymous space to talk to people on a forum - this specific community (think of it like a subreddit, if you came from Reddit) might not be the best fit for this post though. I know !womensstuff@piefed.blahaj.zone is a women only community, I don’t know if there are more specific communities to your situation - you should search Lemmy by community.

It’s also important to clarify that this is just, in the end, a (potentially) anonymous forum for internet users to communicate - it is not a good replacement for actual real life/professional support, if that’s what you’re looking for.