You have to teach people how to treat you. 

You didn't come with a manual. So, stop complaining if you're not willing to set boundaries with people. "He's always doing this... She's always saying that". Well, that's likely because you never made it known that those things are NOT ok. Set boundaries and anyone who can't respect your boundaries, dismiss them from your life. Those who matter won't mind. Those who mind, don't matter.