Weaning at 1 -- tell me about your experience

LO is almost 1 and lost interest in bottles recently so I stopped pumping at work but she still likes to breastfeed when we are together. Now a couple weeks later my supply has dipped down to nearly nothing and she's asking to breastfeed all the time😫 Won't drink defrosted breast milk or cow milk, from bottle or cup. I feel so terrible as whenever I'm holding her she says milk milk and when I give her empty boob she suckles fora min then whines and cries😫😫