Don't you hate that feeling when you look at your closet and you feel like you have nothing to wear, yet it is full of clothes? Yes, me too.. To avoid that, I try to purge my closent quite often, in order to get rid of shallow pieces and things that I don't really like anymore.
You shouldn't feel too attached to your clothes. I mean that it is important to let go of the superficial things we have in our lives, whether it is fake friends, unused object and unloved clothes ;)
The task is not that difficult, although it will just take some time (depending on the size of your closet). Just get EVERYTHING out of your closet and try on EACH piece. Beside throwing away the one you don't like, get rid of :