Barking in general can be self reinforcing, but in cases like the above, where she's barking because she wants something, simply freezing until she stops can be very powerful. You don't even need to turn your back or leave the room, just go completely still and when she stops barking start moving again. Off/on, driven totally by her behavior. Don't look at her, don't talk to her, she's the invisible dog. You might get an extinction burst, where she tries harder and harder to get your attention because it's always worked in the past, but at some point she'll figure it out and give up. The longer this has gone on, the more durable the behavior may be and the longer it will take to extinguish, but consistency is extremely important. Dogs do what works.-When I am getting ready to take her outside ..like the time it takes to put on jacket , hat etc . This also involved biting at pants/shoes/ankles
-Getting her dinner ready
She's not just going to grow out of bad behavior, and barking like at squirrels in the yard or people walking dogs past your house is self reinforcing so ignoring it isn't going to help. It's plenty fun without any attention or interaction by you. But demand barking is different because she wants something from you. Negative attention is still attention. She barks and maybe runs around or jumps on you when you're preparing her meals? It's gonna take longer for her to eat. She'll figure that out pretty fast, my dogs always have. As GSD07 mentioned, build training and impulse control into everything you can think of. Make it default behavior, where you don't even need to cue it at some point, although you may have to at first. Once you've shown her, the responsibility is on her to know what to do to earn what she wants, you shouldn't need to nag her about it. By 14 weeks old Halo was sitting automatically and looking at me while I made her meals, set the bowl on the floor, and waited for me to release her to eat. Because if she didn't, I picked the bowl back up and waited for her to sit and look at me again. She was extremely food driven so she was especially motivated to figure out how to get her meals as quickly as possible.