Sleep regression? HELP!

Gabbie

I’m a new mom so parenting is all a guessing game with me and my husband! My daughter will be 8 months on the 7th and for some reason for the past month and a half has not been sleeping through the night. Since she was about 3 months old she would sleep through the night waking maybe once to eat. Lately it’s been every 2-3hrs she’s waking up to eat. She’s currently eating 4oz of formula with solid foods throughout the day as well. Should I increase her formula? Is there something else I should do? We’re sleep walking in this house now a days lol