Weaning my bbg off the boobs. Help!

Samantha • Mother of two girls. Twenty-five.
My girl is 15 months now and I am so ready to stop breastfeeding. Unfortunately, she doesn't want to stop *sob*
I loved and enjoyed every moment that I breastfed her but I want to be able to work without having to bring her everywhere.
Is there anyway that I can slowly wean her off without making it a heartbreaking experience? She doesn't want to take the bottle, or formula in any other kinds of cups 😭
Help me 😥😣