Massive hun. What your feeling is totally understandable! Your on the verge of a massive life change and it can be overwhelming.
I want to offer you the assurance that while yes, your Dd life is about to change, it is a positive change that will enrich her life and the lives of your entire family! I felt so nervous and scared and excited for Ds1 the day before and the morning of my scheduled c-sec....but all that melted away when I heard Ds2's little squark! And now DS2 is 11mo and from day dot ds1 has doted on him- they are best friends!
Lots of love and good luck Hun, I'll be stalking xxxxxx