I talk too much about myself, but am working on it. I do notice it can build connections especially when you share ever so slightly embarrassing things or express emotions like doubt and uncertainty.

Anyway, I am always happy when someone interrupts me "yeah, you told me about that indeed", before I bore them with the same story.

Where I live we call this "having your heart on your tongue." It's a way to cope with stress (for me at least). I try to limit it, but it always makes me feel better when people have been through similar things and I am genuinely curious as to how they solved similar situations.

Btw, I may remember that I told the story before, I'm just very bad at remembering who I told it to.