Dropped in supply

Elba

I have been back to work for a month and I had stocked up enough milk for my LO. I breastfed him once I picked him up and give him a bottle before bed to sleep longer. But now he is only breastfeeding in the middle of the night and morning. he is refusing to breastfeed when I get home and my milk supply has significantly dropped. help! Its stressing me out because I want to continue breastfeeding but idk if I will last.. its hurting my feelings