Lost bookmark

This might sound bizarre.

A random post got recommended to me. I liked and bookmarked cause I really want to remember it.

Then, I stupidly went on their account and liked other posts, even bookmarked another. (I have like thousands of bookmarked posts)

It turns out that post I bookmarked is gone from my bookmarks, cause they blocked me. They were a small personal account and were creeped out I guess. Why did I go liking other posts. I need that bookmark though.

Is there a way to find out? I don’t even remember the username. All I want is that original post anyway. But again I don’t even remember the username, so I don’t think so.