how long have you stopped BF?
Start to let your baby latch, your supply will come back faster.
Then pump after latch. It will be very tiring but the supply will come back faster if you do like that.
some people say electric pump can pump more and faster. your preference i guess. i use electric pump and then hand squeeze later.
Drink ALOT of water, it really help.
some people drink papaya fish soup, fenugreek, alot of fish