When will I start my first period?

I started my vaginal discharge a exactly a year ago. I have to shave under my arms. And I have a a fur ball down there as you would call pubic hair. ( I even have to shave it sometimes so when I wear my swimsuit, it doesn't show.) My mom tells me I am constantly getting taller. but my boobs are literally like a 30A. I am SO flat chested! it is embarrassing! I know all these things are symtomes of starting your period but idk. how long can you have a discharge before you aactuallystart your period. Please if the answers are really good, I may give best answer 10 points. Please help me!