Hi hun
You've done really well. Everyone always has an opinion, the moment I was pregnant I found out all the world has to start telling you what's best, like you suddenly lose the ability of thought lol
Think there are a couple of ways to stop. Either cut down on the feeds you are doing gradually so you don't become engorged but at the same time your body will also reduce the milk production slowly too or just put baby straight onto formula and then express some of the milk from boobs, but not too much because your body will still think it needs to produce the same amount of milk, so if you just express to take them down a bit your body will gradually reduce the milk production that way.
Think some ppl will say don't put baby straight onto forumla because their disgestive system is used to breast milk, but I don't really agree with that. Baby will be fine and adjust quickly.
Hope they make sense lol xxx