Kindness is a virtue to start with. you can never stop being nice, but endeavor to continue being nice no matter the situation. That is what the bible teaches us, we should never react, or answer back with a harsh word. Yes people can sometimes be a pain or a thorn in the flesh, but that should not stop us from being the good person that we are. in fact, it is only supposed to make us better people. it is through conflicts that we get more bold, courageous and humble. that way you can weigh your anger and know how to respond to people who will constantly annoy you. I am a perfect example, am usually the quiet type, i don't like arguments i would rather let you have your way other than argue. So long as i believe in what am saying, it doesn't really matter whether you agree with me or not. so just be kind, and somehow the person who annoys you will finally come to realize their mistakes and come and seek advice from you one day.