Hloooo young man
Bad breath can be caused due to improper oral hygiene, Dental caries, due to some foods, in rare condition because of any systemic conditions
So dnt rush
Deal it with care
First consult a dentist you will come to an idea about the cause of your prblm than go for the required treatment
Hope you will get a solution to your prblm
All the best for your date young man 🙌
Next Steps
consult a dentist.
ask for proper brushing technique
Health Tips
maintain proper oral hygiene, if you are having any habits like smoking, gutka chewing
try to limit there usage