12 month old barely eats and is so picky!

My LO just turned 12 months and is such a picky eater. She’ll have fruit purées, yogurt, cheese sticks, some fruit, and sometimes chicken and pasta. That’s about it. When I try other foods, she just spits it out or throws it on the ground. Even these foods she doesn’t always eat and it’s a struggle to basically get her to eat.

Yes we let her feed herself. She mostly throws the food on the ground.

Yes I’ve tried giving her what I’m eating as well. She’s just not interested most of the time.

She’s still drinking 7 oz formula 3 times a day so 21 oz. Should I reduce that to see if she’ll eat better? Maybe she’s not hungry enough? But honestly babies this age should be eating in addition to the milk so I don’t know what to do. I’m always stressed about her eating.