I have bad breath which I've suffered from since 16. I've found some things that have helped. Using a tongue brush helps a lot. Finding the right toothpaste and mouthwash helps too. I would try closys mouthwash and oxyfresh power paste. Keep trying things until you find the one. I had to remove my wisdom teeth and tonsils so make sure it's not coming from there first. My breath use to be really bad and I got through it. So you can too.