Feeding schedule

I am a first time mom. Bub is 9 months old. Is he eating enough? Breakfast (around 8) is usually baby cereal, and 4 oz of fruit. He has an 8 oz bottle around noon-1. He has " lunch" around 4-5, which is usually 4oz of veggies mixed with meat, and another 4oz of veggies or fruits. He has an 8 oz bottle around 8. He then has cereal and yogurt (the Gerber kind) around 11. He usually wakes up for another bottle around 4. I know its a really weird schedule, but I work 3rd shift, and he's kind of been on my schedule since in-utero. Any guidance would be helpful. At what point do we incorporate sippy cups of water? He usually doesn't want it