I bf until about 13.5 months. It took about 6 weeks to wean from all four feeds. My plan was to replace bm with cows milk, but he had other ideas
Initially he didn't like cows milk at all. He would actually spit it out and make a face like I was trying to poison him
I started with the daytime feeds and just replaced with a dairy snack. The information I found said that after 1 year, 3 servings of dairy is recommended. So eventually he was having two dairy snacks plus about 1/2 a serving at breakfast in his oatmeal and usually something at lunch. Since he was getting enough, I gradually worked on the wake up and bedtime feeds...hard.
I had to change little bits of our routine at a time. Like, first thing in the morning, I used to nurse him directly out of his crib and then change him, he was so desperate for milk. Then I changed to doing his diaper in between sides, then had two days of screaming while I changed him before milk. Same kind of thing for bedtime, dropped to one side only, then had two nights of screaming at bedtime. Bedtime was the hardest. Best to do that on a weekend maybe. Maybe dad can put her to bed?
He didn't start actually drinking a full serving of milk until about a month later, and only if I gave him something with it to make him thirsty (crackers, peanut butter, etc.). Now he will drink it on it's own, but he only has one cup a day, the rest of his dairy is yogurt and cheese.