Hi there
Congratulations on the new addition!
It is crazy what you forget right?
....DS2 is 4.5 years apart from DS1 and I forgot a lot of it too
hang in there mama. It'll come back to ya.
I do agree with all the other suggestions above hun. Babies at this age, especially BF babies, wake every 2 hours for a feed. So when you say she wakes at 9:30 from 7:30 pm bt, that's very normal. She is so tiny hun. Give her time to adjust. Chances are, with her 2 other siblings, her routine and sleep will be a bit all over the place too.
I would like to mention that being so little, she needs time to learn her day from her nights. They have their clocks reversed usually. You can try helping now by waking more or less at the same time each day, keeping it nice and bright, talking to her the little times she's awake and even when she's falling asleep. Night time you can dim lights, help her unwind and in a few weeks even develop some sort of BT routine to help.
As far as why it takes her so much to nurse at nights, I think with breast feeding and my experience, they really don't become pros until 8-10 weeks. And even then it's always something new to adjust and fix. I believe it's possible that she is still working on her skills hun. The first 2 weeks are always the hardest for BFing so give her time. It is also very possible she is also just wanting to sleep with mom. She enjoys your warmth, and comfort... know what I mean? Don't worry too much about "props" either. She is way to little to develop them as well. The thing is, their clocks are just reversed and they want to be up at nights. Totally normal and a phase!
The best thing you can do is try your best to get her to sleep! Use the breast! I sure did and it was never a prop! I still use them as a secret weapon haha
...I also resorted to swings and sometimes just letting him fall asleep on my breasts.
Don't expect longer stretches of sleep until closer to 3 months or so. 0-3 months they work on nights and 3-6 it's the nap struggle
...hang in there hun and I would work really closely with her latch just in case
but also, taking so long to nurse is normal at first. Just keep track of her stools and wet diapers.
This is all SUPER normal. She won't get her days and nights working better until a few more weeks, hun. I know it seems like forever but she will in time. They just think nights is their days. Just do what you need to to surviveeeeee haha
...use all the tools! I used white noise swaddle paci breast feeding swings... all.of.it! And by 4.5/5 months he started sleeping independently, 10-11 hr nights and naps got longer. It was all about gently helping him one thing at a time. Using each less and less. I know how extremely it is. How hard it can be and seem like an eternity!! ...but give her time. I juuuuust went through it a few months ago myself. Hang in there!
Many hugs!