I am by no means going to state that this show is 'real' in ALL aspects. Some of the occurrences (especially in the first few episodes) are a biiiit over the top. However - if you stopped watching after 3 episodes, I think it's not necessarily fair to review an entire series. I'm on Episode 10 and I can already say this show has completely transformed since the beginning. You begin to see real sides of Sophia which helps explain the reason she is the way she is, and like all people there's more that meets the eye. Yes she can be selfish and annoying (but as someone that works with teenagers daily.... THIS IS what a lot of our youth are like!) - it doesn't mean they don't have hearts of gold and good intentions and are good people - they just can't help it! But I digress...
Basically, at first I was annoyed by her character but I have grown to love her andddd continue to love her best friend, Annie. Their relationship perfectly sums up true friendship and their dialogue is absolutely hilarious (well all the dialogue is hilarious really. Each relationship Sophia has with other characters is unique and genuine). If you enjoy the humour of shows like New Girl and Brooklyn 99 - you will enjoy the crude, inappropriate and brilliant writing this show has to offer.
DON'T give up after the first few episodes. Make it to at least Episode 5 where we find out how Annie and Sophia became friends. I promise you won't be disappointed!