Can’t keep up

My daughter is 8 months old and I can’t keep up with her milk demand. I only pump 7 oz total at work a day. She drinks 2-7 oz bottles in the AM & PM and has a 5 oz bottle around 5 pm and I nurse her to sleep. She eats breakfast, lunch and dinner. When she is with me I exclusively nurse her.

She’s never had formula, I’m not against it but my personal goal was to hit the 1 year mark.

I drink water all day long on average 8-10 cups, I don’t skip meals and for the most part I haven’t suffered from a low supply.

Any suggestions? I’m a working Mom and my daughter has never had formula