What do you do in a sorority?

so i am 13 but im thinkin about joinin a sorority in the near future and i just wanna know wat do you do in a sorority? and are there any schools who dont haze? oh and after ghazing, are they like your bffs or something? idk its just from movies and online im worrried about hazing. and i still have no clue what happens in a sorority after you pledge. you move into the sorority house right...and stuff....well just explain plz.