I also gave my son a bottle with juice in it before he could use a sippy cup. Or so I thought he couldn't but once I learned he could hold a sippy cup better I stopped bottles which was about 1-3 months he used them and then seen the 360 cups and those are amazing. Except my son learned the top comes off of them and he takes them off.

I didn't wean my son until he was 2 years and about 1-2 months. ONLY because I got pregnant again and they hurt so bad. I just told him mommy can't do it any more you have to drink milk. And he put up a little fight but I was already working on getting him off months prior to it. I would only nurse him during bedtime & if he wasn't feeling well. It was a fight but he eventually learned he wasn't getting them. He also has to drink lactose milk , not saying your son would have too just mine does for medical reasons, also if he's bitting you and it hurts tap his mouth or flick his cheek lightly, and tell him no bad and take it away from him and everytime he does it just take it away. I think I flicked my son's cheek one time and tapped his mouth and he hasn't done it since of course I wouldn't give it to him because I'd tell him no you hurt mommy. And he learned. But that was at the younger age when he was getting teeth.

I never gave my son bottles, try just switching to cups. We use different 360s for milk and water.

He will learn. My son was 2 and never a bottle we went to cups