Today, it's advisable for you to reserve your energy for your own issues and concerns: and don't worry about other people too much. So what if folks complain that you are being selfish by not putting them first? They're wrong. You simply have to put yourself first every once in a while. If you exert all your energy making others happy, you will have nothing left over to make yourself happy: and that's not good. Maintain your flawless manners, but don't forget to treat yourself right.