How to get rid of anxiety that makes you overeat? Please give tips and advice.

Consult a mental health professional, for starters

It can be an addictive behavior like any other... So it's not so easy to stop...
It's better to not overindulge in things that cause more "hunger" like the ones with sugar or refined flours..
When you feel the anxiety try other coping mechanisms.. Maybe drinking something slowly can help

You need to change whatever's causing the anxiety or find a different coping mechanism. It's not easy but it is simple.

I over eat without anxiety lol so I can't help