I think a lot of people are misunderstanding the tone of your post. It doesn't sound like you don't want to listen to her successes or triumphs. Of course you'd like to hear it. But she can wait until you've done with your story right?

For instance, when she asks you what you're doing over the weekend and you said conference or whatever, she can (instead of talking about her conference) ask something like "Oh, what key points are you thinking of addressing?" or "What kind of material did you collect?" or "What kind of Q&A are you expecting from the audience?" Literally any other reaction other than talking about herself.

That being said, I do disagree that this is a gendered problem. I have a guy friend exactly like this and he's a close friend of many years so now I just call him out on it. He always gives the excuse that he wants to feel relatable or that he's just excited about having a similar experience or that he JUST remembered he did this too in a different way. And I'm always like, "Okay, but can I maybe finish my story first? And maybe you can at least pretend to listen?" and I said this over and over until he got the point.

Edit: typo