If you are the person who constantly does nice things and never complains, then congratulations! Nobody really cares and you should finally do something in order to be more honest with others. Seriously, you cannot continue being that nice. It is not good for your health. So, you could start by quitting on these bad habits:

1. You are a polite driver who lets people go first even though they are not supposed to go. You let pedestrians cross the street even when they should not…. Well, remember that rules need to be obeyed.
2. Not being honest with your boss is also quite a huge problem. If the thing your boss is doing is in your view bad and it can hurt all of you, then you should probably say something politely.
3. Being too polite to your doctor. Even if you think that he has made a huge mistake. Well, do not let this happen to you. You need to be rude. Seriously, it´s your health. Your life and you probably want to live for as long as possible not for as long as your doctor allows you to.
4. Just do not be too polite. People will not understand that. No way. They will consider you weird, because nobody is polite just like that. People always want something when they are too polite. Just, try to keep it down. Be nice, but not too much you do not owe it to the people.