How do I wean my baby by 12 months?

It's pretty easy at 9 months to have them drink from a bottle or sippy cup etc because they're already exploring food and drinks, so bottle refusal isn't as common.

There are other things to manage with older bubs though. I.e...

Your milk production might be high andtake time to reduce... being older you are producing more milk that is watery than the condensed milk you produced prior to 6 months. So your boobs will object. I found that the best way to combat this was to initially extend the time between feeds by 30 mins, then 45, then 60 etc until I could then just start dropping feeds off. Start about 4-6 weeks before you go back... that is heaps of time to have your milk supply taper off slowly. I'd suggest dropping during the day first though. I found with my youngest that by dropping the daytime feeds and overnight top ups first, I ended up producing just enough for a wake up feed and bed time feed only, so I worked FT and still breastfed a bit without having any need to pump during the day.

Also an older child is more likely to demand boob at night if it's part of their bedtime routine and they rely on it to fall asleep. That's why keeping wake up and bed time feeds can be useful once you return to work. Once you are down to just those, stopping is easy physically if your child just loses interest or you want to cut it off in full. Keeping them might help you actually get a good night's sleep yourself though.

The only word of warning I will give is that if your child uses breastfeeding for comfort, they'll try to replace it. Thumbsucking is not better ergonomically than a dummy and is a much harder habit to break. If your child starts thumbsucking and other approaches don't help, a dummy might be the smart option. I wish I'd known how hard breaking that habit was with my first child when he started doing that when I weaned him!