Please answer 
The typical student, at least in my school, takes it twice: Once in spring of Junior year and again in the fall of Senior year.
3 is a bit over at my school so 3 or more is bad i believe
Most students take it an average of 2-3 times. However, the number should just depend on how you perform. If you’re happy with your score, there’s no reason to keep taking it. I have heard that taking it more than 3 times is unadvised, but I’m pretty sure you’d be fine taking it as many times as you need. Good luck!