living mainstream is something we either do and accept it or we do and hate it. and i think this is because being not mainstream became mainstream. we all get inspired by things we see. we see them every where: online, in real life, in a magazine...
and inspiration is good but what if we see inspiration just as inspiration not as ideal.
let me explain myself:
if you have a lot of friends who listen to oldies and you also like oldies, listen to them but decide for yourself which songs you listen to.
if you see a girl with a great style online, look how she wears the thing but don't look for the exact pieces, because you can personalize the style.

and don't be afraid of being mainstream... just be yourself --> you can also get inspired by the mainstream looks.