It is normal tongue coating not leukoplakia.(If leukoplakia,it is not scrapable),it is scrapable and doesn't have burning sensation and pain,so it is normal tongue coating
Leukoplakia is a non scrapable lesion.
Next Steps
don't take self medication,you should visit dentist
Health Tips
Tongue cleaning once daily (gentle scraper, not aggressive)
Drink 2.5–3 L water/day
Avoid:
Smoking
Alcohol
Excess tea/coffee
Rinse after meals