How should a girl who experiences continuous bleeding throughout the day act regarding her prayer, and does this bleeding invalidate her ablution?

If a girl's bleeding continues for more than fifteen days, she must distinguish between menstrual blood and other types of blood. What she distinguishes by certain characteristics as menstrual blood is menstruation, and anything else is istiḥāḍah (non-menstrual vaginal bleeding). If she cannot distinguish, she should refer to her known habit. If she has no habit and cannot distinguish, she should consider the prevalent duration of menstruation, which is six or seven days from the beginning of the Arabic month, or base it on the condition of her female relatives. A menstruating woman does not pray or fast, whereas a woman experiencing istiḥāḍah should use a protective pad, perform ablution for each prayer, and then pray.