It hasn't been destroyed because your daughter's future hasn't been written yet. What is gone is the version of how you thought it would play out. That's it. Just a vision, a hope.
I'm not going to minimize the impact of D on kids. Even under the best circumstances it's still a destructive force. But I look at my own family for inspiration.
My Dad cheated on my mom and ended up leaving her for the OW. He left her with 5 kids ages - 11, 9, 6, 6, 4. Child support was pretty crappy back then too. My mom work full-time. All 5 of us kids went to college, 2 went to law school. Between us we have 2 lawyers, an architect, a teacher and a nurse.
I have no doubt your Ds future is bright.
Patience is bitter, but its fruit is sweet. --Jean Jacques Rousseau.