I wish I had some advise as to how but this is the way DD self weaned. By about your DD's age she had no feeds in the day and only the bed one and the early morning one.

My DS on the other hand is exactly like your little miss and has gone back to asking all the time. I'm all for not refusing if he asks, but man i need some space back. I try to distract DS with an activity or outing, but we only have one car so that's not always an option and often he bypasses the distraction completely after 2milliseconds and cames back with his original request.
So, Subscribing.