my haiiir

hello...well i'm 15 years old and a  sophmore, heres my story.

In 8th grade year i decided to go sun in crazy and so much of my hair broke off. To the point where it was only 4 inches long at the top. wow beautiful , huh? so i left it up and what now until the begining of this year. wow my hair grew out all the way till past my shoulder. which is alot right? for damaged hair!!!!! it was extrememly brittle and all that..so anyways i have this beautiful haircut, haircolor and everything. & then my friend demands me to cut my hair and her being a few years older than me, I was scared to say no. So she cut it and its like four-six inches past my chin. it looked like crap so i went to the hairdresser she didnt cut off any length just a lot of layers. so now im back to tying it. i remember when i was much younger my mom cut my hair in january over winter break to a chin length bob. it grew to a little above myshoulders by that summer. is this alot of length or ...not? because many people seem to say that 1/2 inch is regular ,but for some reason i think mine is alot faster, or maybe im dreaming or hoping lol.well schools ending in two months and im hoping to have alot of growth so i can atleast be confident for summer partying.