Breastfeeding weaning at 12 months?

I’ve heard that a lot of babies just naturally self wean off breastfeeding around the twelve month mark. I’m hoping my baby is one of those babies, because twelve months is about the time I want to stop breastfeeding too. I’m a first time mum, though, so I don’t really know much about it all and was hoping you mamas could give me some more info. Like what are the signs they’re weaning off? Can I do anything to encourage weaning or help it along? How many solid meals a day, including snacks, do they need to be on? How much water or cows milk should they drink while weaning and once off breastmilk completely?

Thanks in advance! (: