my DD is the same Bex, she is only 5 weeks old, but from around 6 to 10 most nights is an utter disaster, she cries no matter what we do. I have found though that total quiet time (no tv, lights down, me feeding her lying down away from her noisy brother) has helped.

Also hun make sure you are taking care of your health, you feeling hungry and stressed wont be helping her relax. Swap your lunch and dinner meals, so have a bigger meal at lunch and have some finger foods, like sandwiches (made at lunch and put into fridge for later), mini quiches, pasta bake etc ready for night time. Something you can prepare with one hand and eat with one hand (or with just a fork).

I know it doesnt feel like it right now, but try to remember she will be out of this stage soon and you will get to sit down to a hot meal again