Avoiding cavities

Okay so I just got 3 cavities filled this morning this month and I have another appointment for another cavity I don’t eat added sugar like that anymore and I eat stuff that sugar free like the good stuff for you that’s naturally flavored with like honey or Monkfruit, well I think it’s good but idk And when I do bake at home I use natural sweeteners too like dates, so what am I doing wrong? I do snack on fruits a lot and I heard acidity causes it too, will I be fine if I drink water after? Or should I be carrying around one of those like portable toothbrushes? Should I be chewing xylitol gum daily now? If so what brand. Help me out