Damn! Not sure exactly which country you're in but the minimum wage of most western european countries is between €8-10 / hr. There are cleaners who make the same money as you!

Seems like you've got to up your game. Don't get mad though, take this as a lesson and learn from it. If anything this should be good news because now you know you can earn way more than you are currently for the same exact work.

Why does it make you mad? If you're decent, you can definitely charge more.

Feel free to email me if you want tips on upping your rates: me@morgante.net