Hi and welcome to YT

! And congrats!!
Is your girl a rescue, is that why you aren't able to know much about her?
Boiled chicken is okay for a few days, perhaps, but she does need a balanced diet for long term. I feed frozen raw by Primal or Natures Variety. If you're looking for a kibble then I'd recommend Natures Logic Venison, Natures Variety, Solid Gold Wee Bits or Barking At The Moon, Wellness Core...to name a few.
For potty training, you may want to read the sticky threads in our General Training section for tips.