These costs seem really high.
Food: a 9 month old shouldn't need pureed food anymore. There are all sorts of normal foods that they can eat at that stage and it should be plenty. And, yes, they can eat a lot but it will go up and down as they hit growth spurts. Avocado, banana, small noodles, cereal like Cheerios, crackers, toast cut in cubes, shredded cheese, yogurt, applesauce, sweet potato - baked or baked as fries which makes them very easy for little people to hold, regular potatoes prepped same as sweet potatoes, squashes of all kinds, any veggie that you cook up for dinner, beans, any soft ripe fruit cut in small pieces, canned fruit and veggies (this is a great fall back for when you don't have something else), any soups/stews/chili/casserole that you make.
It might take a little bit for them to get used to texture but puree is crazy at this age as it's so much more expensive and time consuming that other foods.
I found this stage to be a good one to introduce a small fork. You stab the food and let them experiment on getting it to their mouth. Frequently they will take the food off the fork with the other hand to eat it but it's all learning. Some of my kids were able to fully feed themselves with a fork and spoon by one year (not all of them but some of them).
Clothes: Check with friends/relatives that have kids just slightly older. Check thrift stores. Shouldn't need more than 8 outfits unless you wash less than 1x a week. Buy clothes big and roll up sleeves/pants so they can wear them longer. Plus their growth should be slowing (usually weight is doubled to tripled in the first year and then goes way down from there) so clothes should fit for longer periods.
Toys: buy a few classic open ended toys like blocks, a doll, a few balls, etc and be done with it. Those toys will last for multiple years.
Since your baby is 9 months now, that means the birthday is at the beginning of the summer. Use the birthday to get summer clothes and a few new toys. Use Christmas the same way. Since they are close to a half year apart, that should make it easy.