If you like Diary of a Teenage Girl, you should watch its more realistic
...counterpart:
http://www.imdb.com/title/tt1465505/?ref_=nv_sr_1
...counterpart:
http://www.imdb.com/title/tt1465505/?ref_=nv_sr_1
http://www.imdb.com/title/tt1232776/
Fish Tank is much more realistic.