How many bottles?

Noleen • Married summer 2015
My baby girl has not long turned 6 months. She was on 5 bottles and I started giving her one lunchtime solids at about 4.5 months (I spoke with my HV before doing this and she said we were ok to do this). The baby dropped one of her bottles and was going to bed about 8.30pm and sleeping until 8/9am. Now she is 6 months the HV advises the next goal is to get 3 solid meals per day and drop the middle two bottles....... I have gotten her to have two meals per day and won’t push the third as she is still very young. She has now dropped another bottle and is on 3 bottles and two meals and sleeping 11/12 hours at night. Anyone else’s baby dropped bottles? I sometimes worry she’s still too young but then go on what the HV tells me 🤷🏻‍♀️☹️