Hi op. my four kids have age gaps of 20m, 23m and 21m so done this a few times and can really sympathise.
Firstly, remember this nightmare patch won't last long. Soon you'll hav a few more weeks old baby who will fall asleep and be happy in a Moses basket in the same room as you for an hour or so so you can get 2yo to sleep.
Secondly, i'd suggest letting go of anything that isn't entirely necessary to you and our family right now, and that includes ideas about when bedtime sold be and what it should look like. IMO the priority in big upheavals like this is reduced stress for everyone involved.
Thirdly, some ideas that we used at various times:
- get 2yo to sleep in your bed. I would lie only side feedin the newborn, while the toddler lay on the other side of the newborn and I read. It's not cuddling, but if your 2yo s happy with that, then you just need to transfer her when she's asleep to her own bed.
- get 2yo to have an extra nap in the day and move bedtime to later when her dad gets home and can help out
- put both kids in the car and drive them to sleep
Just play around with things until yo find something that works, but remind yourself it may only work once and you may need to get creative again the next night. A new normal will soon settle on your family, don't get too stuck on maintaining the old normal.
Also, I would also caution against portioning out time to each child in an effort to be fair. Fair doesn't mean 'equal', it means giving each child what he or she needs at that time as far as possible regardless of whether one needs and hour and one needs five minutes.
I also found the more I try to share myself out equally, the more I become a commodity for the children to fight over. The more we do things together, as a family, the better they all get on. Start early and get your 2yo as involved as possible with the baby, making it a team effort. The whole of society works best when we're all more concerned about the collective than we are with the individual, so I totally reject the premise of creating protected time artificially of each child as one poster suggested. Kids will naturally get bits of time alone with you, but it needs to be something tha happens naturally, and not the main focus, however lovely it may be.
Good luck!