how many meals do your 9 month olds eat? also do u give formula or do you continue breastfeeding? do you think formula increases night sleep?

Joanna • instagram/facebook:yanncandy
Mine is eating two : fruits at around 11:30 and chicken/fish/beef with veggies at 16:00 and breastfeedings in between and later. Now i consider  of giving him another meal around 19:00 like greek yogurt or fruits with oatmeal or quacker or quinoa. What do you ladies do? Also everybody suggest to give formula even if i have pleeeenty of breast milk; with the excuse that will help him feel no hunger and allow him to sleep continuously. Do u think so?