First of all no one is perfect and everyone some bad qualities and some good qualities.

As far as changing concern Everyone who is in contact with me say that I'm so much caring, and that thing hurt me sometimes,
now you'll ask now?

Let me explain it to you, It human nature that when we care for someone, we want that care in return, but nowadays no one cares you back. I have experienced it many times in my life. so I want to change my this caring nature.