Girls, hello! Tell me who at what time was breastfeeding?

Girls, hello! Tell me who at what time was breastfeeding? How did the process go during the break and after? How did the milk disappear? We're a year old I don't have problems with milk But he already seems to play with the chest If he drinks formula, it's fine I think I should switch to formula completely But nights became unbearable, only I will take out the sippy cup all over the house It's like he just likes lying and sucking on the sippy cup