Remember that women are people, and I mean that brutally. I'm not just being progressive or whatever. I mean when writing scenes between people, think about what the characters are feeling in their body.
Is she dehydrated? Hungry? Tired? All these things change how everyone acts, but I notice sometimes when people struggle writing women it's sometimes because they're (unintentionally) putting women into the category of "Thing to be acted upon".
You don't even need to bring it up in the story, just be aware of it when writing. You don't need to have her say "Oh I'm sorry Mr. Protagonist. I didn't get much sleep last night." it's enough to mentally go "Ok, at this point in the story Mr. Protagonist is heading out to his job, but Ms. Love-Interest was up last night with a sick dog who kept puking on her floor. Mr. Protagonist doesn't need to know that, but I should write her lines as a little more tired/fatigued as a result."