My son won’t get off the bottle or eat food 🤦🏽‍♀️

Hey so I’m a first time mom and was wondering how everyone got there kids off the bottle or even to eat more I have been trying for months with no success. He’s 21 months old so I’m in desperate need of advice to get him off the bottle I have tried multiple sippy cups and he just seems to hate them all. Also he won’t eat he’s very picky and it scares me that he won’t eat if I don’t give him milk . Any tricks or advice anyone can give me ??? Please and thank you