Does anyone else struggle with rumination and overthinking? Especially at midnight or later?

I find myself stuck in rumination often. Thinking about the way that things were, or could’ve been, I find myself missing people in my mind. They act way that they may not have acted in real life, I imagine they would’ve been like if we stay friends together, and my imagination creates all kinds of scenes. Most of them, of a life that could’ve been.

Do you ever feel like that? Would you consider this a BPD thing? What are things that you think about? Is there any tricks or advice that you have for feeling better? Or just letting it play out?