Of course you can do it any time that suits you all. Problem being, of course, that tips from people who did it earlier or later might not be relevant. I’ve checked my ‘night weaning’ thread from years ago to see how I did it - the answer involves a lot of talking (at 24 months) which might not be quite as relevant for you. You need to just search up loads of tips and ideas and then think of what makes sense in your set up. Here’s cut-and-paste how I did it:
I started by getting rid of feeding to sleep at naps and bedtimes, which I was confident about as she used to do without it and she naps at nursery. So I got DH to put her down for naps and introduced a story between bedtime feed and bed - with introduction of the idea that the breasts were going to sleep at bedtime too.
Once that was in place, I felt ready to not feed in the night. The first couple of nights there was a lot of wailing and a lot of crying for breastmilk. DH and I both cuddled her to sleep in a chair, found she woke on return to cot, did a bit more cuddling, let her cry a bit. On one occasion I got a bit confused and ended up giving her a cup of juice
That lasted about two nights.
After that she seemed a bit more amenable to some reassurance and comfort in her cot - I've always read about people reassuring and patting and never found that it comforted or calmed dd, but that seemed to change. So now I can go in, give her a bit of chat, wander out and go back if needs be (if crying ensues and not subsided by time I get back to bed, really).
I'd say in general that I'm using a lot more talk about sleep, her cot animals, what's happening when we wake up, who's asleep and where, who's trying to get to sleep and so on than I was before I started