The smarter someone thinks they are or makes themselves seem to be to others, the dumber they actually are.
Never underestimate what an actual hater who sees you doing well for yourself, have something you have that they don't or doing things they themselves aren't doing, will do to see you fail.
you can be a good person that doesn't get in trouble and keeps to yourself and that person will try to spread lies and rumors about you. Even going to the point of great lengths to see you fail. Let them do what they do and eventually they'll expose themselves for the miserable sad people they are trying to bring down others.