Don’t judge. Behind every person, there is always a reason why they are the way they are.
It is natural that we react variously at different times and it somehow depends on the company that we have. People having company of positive and lively people, judge less and stay happy. People having company of negative and discouraging people, judge more and stay confused mostly.
To be more successful in life, it is better to think about positive things and believe in them. It is better to work hard and pray for your self to be stronger than before to do more and bigger things. But never put your self in a state of judgement especially to judge others about themselves.