Milk for 12 month old and beyond

Hi ladies

I’m needing some advice for milk intake for my 12 month old. I’m still breast feeding and are happy to continue to do so. At present I feed upon waking from naps and another feed before bed at night (She’s not fed to sleep). My daughter still wakes at least once a night (twice if she’s unwell or teething etc). I feed her once in the night and she goes right back to sleep. If she wakes other times I’ll rock or pat her or she’ll just put herself back to sleep. My son slept through from 6 months and I weaned from milk during the day for him from 12 months- so I’m a bit unsure of what I’ll do for my daughter.

I’m wondering if I should give her some formula (or cows milk?) before bed to see if it helps her be fuller in the night.

She loves her bottles/milk during the day so I plan to keep this in I think- but again I don’t have any experience of breastfeeding after 12 months so I’m not sure. She eats solids three times a day and some snacks.

I should note she’s petite and always has been.

Welcoming any ideas on milk intake from 12 months on. Thanks!