Bleeding gums and Bad breath occur due to plaque and tarter (Calculus) deposition & because of poor oral hygiene (gums infection).
You have to visit your Dentist and get oral prophylaxis done (scaling/cleaning of teeth) . After getting treatment you have to maintain your oral hygiene with 2 times brushing and flossing.
Next Steps
Visit your Dentist and get proper checkup done.
Health Tips
Visit dentist in every 6-8 months.