Intro and Nervous!

Hi everyone! I recently discovered I'm about to have 2 kids under 2 (barely, but still...). I have a 17 month old daughter from IVF, and we are pregnant again by surprise! I'm 9 weeks. Baby 2 is set to be born about a week before my daughter turns 2. And I'd be lying if I said I wasn't nervous. DD is a handful. She wants to be independent, and really wears us out. And I keep remembering how little sleep you get with newborns, and this time there's no "sleep when the baby sleeps" cause I have a toddler to take care of. I'm REALLY excited to be having this baby and I know that in a few short years they'll be so grown up. But I can't help but be a little  nervous. How do you all handle it? Am I the only one? I'm so happy, just... so many concerns about making sure they each get time with us and don't feel deprived and stuff. It's going to be such a big change for DD. I guess I'm just looking for friends who can commisserate haha.