How to stop breastfeeding?

Not in terms of method. I’m an EP mum. Been bf my baby for 16 months now. I’ve been thinking of stopping since beginning of the year. But every month I just keep going and going cause I feel bad for stopping. I wanna stop cause I’m a bit tired from having to pump a few times a day. Been dreaming of not having to pump anymore. Also my milk keeps on dropping. Now I’m only pumping 300++ per day. But everytime I think about quitting I feel guilty about it. We got to stop at some point of time. How do you guys finally decide to stop bf? And how you guys get rid of the guilt?