Newly Diagnosed DCIS Stage 0, Grade 2: Still reeling

I'm still numb from just finding out this past Friday, but trying to do my due diligence to research everything i can find. My mother had something similar 14 yrs ago but she doesn't remember what kind it was. She had a Mastectomy on the one breast with reconstruction. Cancer free since then. No Chemo.

I'm supposed to meet with the Oncologist in my local town next Wednesday, but honestly, I think I would prefer to go to the #1 Cancer Center in NC in Winston-Salem.

If you requested to get a 2nd opinion, did anyone have any issues with wanting to go somewhere different than what was initially set up for you ?

The biopsy they took, it had the calcification cluster. There are other spots, but not cluster in the same breast. I have dense breast tissue and actually concerned about the other breast.

Is it too much to ask for an MRI on the affected breast and the other breast to determine if there is any additional underlying condition in both breasts?

I'm just beginning this journey. I think I'm still in shock, but not actually surprised. I think I knew when i went back for 2nd mammogram magnification that it would come back positive.
I cried a little when the navigation nurse told me the results were positive. I just haven't been able to cry really... I just feel overwhelmed and numb.

sorry for the ramble. I'm just not sure what to do....

Please feel free to share your story journey....