I like the advice of the poster who mentions starting with her co-sleeping at bedtime. Maybe wear a t-shirt at night and lay down where you are not real close, just where you can reach her. Keeping my hand (the whole length of my forearm actually) on my son kept him quiet when he started to stir at night. Often I could sush and hum and get him to back to sleep.
You might "test the waters" with a test like this: when she wakes up, acting like she wants to nurse, put her close to you but up high like near your neck. If she settles down, maybe she isn't truly hungry.
Does she nap during the day? It would help if you can arrange to sleep at the same time she is napping. I was able to do so with the support of my mom and my sister when my husband couldn't help.
Try one thing at a time. Maybe you want to start with less solid food and more breastmilk during the day. Maybe the idea of a feeding of oatmeal at supper would be a place to start. Believe in your instincts because you are the one person who knows this baby the most and the best!
I know you have been reminded already but it was very helpful to me to remember that this young one won't be this young very long!