Bless you, you have just been through a monumental change in your life, you're allowed to feel like a bit of a mess :)
DD was wonderful when she arrived but honestly, as an early years teacher, it just felt like the attachment I had for any of the children in my nursery. I cared for her, met her needs, gave her affection but it didn't feel like she was mine. I felt a lot of guilt over that. It came in time though and now when I look at her I get that wonderful fuzzy feeling knowing she's mine except when she's throwing a tantrum and then she's DH's.
Prepare for leaking so it doesn't stress you out. Dark knickers, dark leggings/bottoms, dark towel on the sofa. Then if it happens, it happens. Worse and more humiliating things happen through pregnancy, birth and raising kids than a bit of blood and you've got more to concentrate on than worrying about your pad :)
Have you asked anyone to look at your wound? Mine got a bit infected around the 2 week mark and I ended up on antibiotics so you do need to look after yourself, keep it clean and dry and seek help if it doesn't look or feel right.
Go easy on yourself, you're doing an amazing and extremely difficult job raising two tiny babies. Call on all the support you can get to ease the load and remember it will all get easier with time.