I think you have done an amazing job of sticking with it.
It's not easy, I know. It's very easy to visualise the situation but a totally different thing when it is your dog!
Try, only after a partially eaten meal, some of the suggestions - a tiny bit of wet food mixed in, a very small amount of warm water - it may make all the difference.

Keep it up, I know you don't feel that much progress is being made but she will never be a Labrador!! You are doing great, she is eating something and you have started to take the issue out of food.
Well done!
Keep going, don't forget how important every step is and how valuable that you now see exactly how much is being eaten.
Keep up the ignoring phases and you will see a continued improvement.

Good work!