Answer:
To answer your questions 1. I started using tampons once I saw blood in my under ware you 2. You should expect to go on a roller coaster of emotions the highs and lows its not fun for me at all but it happens to all of us girls / woman. I am manly sad/angry yelling at everyone and then after apologizing. 3. sadly I don't have an answer I don't remember a lot of things all I remember is that I think I got it later than others.
BTW if anyone post this just know it doesn't embarrass me and it shouldn't embarrass you either its just normal because it happens to every girl.