Hello, please don't laugh) Is it possible to get breast milk back?

Hello, please don't laugh) Is it possible to get breast milk back? The baby is 5 months old, breastfeeding ended in 2 months (in 1.5 months there was not enough milk, I pumped and gave some for a month, then after illness, milk completely stopped, the baby did not take the breast as soon as I started pumping), now something psychologically happened and I feel like I neglected the child by giving him the most important thing and want to get the milk back (milk still comes out if you pump), has anyone had such an experience? Please share your advice.