I second a baby hammock. We have a natures sway hammock and it is the best thing I ever brought. I brought it when DD2 was 9 months old cause I was desperate, DD2 would only sleep if we were sitting upright on the lounge with her. She is 1 on Saturday and still in it. I wish I brought one years ago.
I'm #4!

I don't know how we would have survived without our hammock (Natures sway too!) Both my girls loved it as did the 3 other babies who have used it. I didn't put DD2 into it until about 7 weeks and when I did she went from cat naps to her first 4 hour sleep of her life. We had outs hung from a hook in the ceiling right next to my bed so I could bounce her without getting out of bed if needed and also strung it from any doorway in the house that worked. Lifesaver.

Otherwise, I second what Barb said. Sounds like another variation of normal and in need of a little comfort. I love the advice
Sometimes the pressure is eased by knowing you are doing all the right things, and you are not creating any bad habits.
Sounds like you are doing all the right things attending to her needs.

Yowie, still in it at 12 months? Excellent!!

ETA: Maybe you could have a chat with ~Trish~ as she sells the Amby hammocks and is the go to girl for all things hammock