In my experience, by two it's the morning and bedtime feeds that are the hardest for lo to give up. So, it's easiest to start by cutting out daytime feeds. If you have already managed to wean lo to just morning and night, then decide which of those two will be easiest on lo to cut out. Before completely weaning it's important to start a new routine with lo and make sure he's comfortable with it. As a lot of nursing at this age is just as much for comfort as it is nutrition/antibodies you'll need to make sure he has something else he's familiar and comfortable with or you will make this very difficult for he and you.