A positive focus in life, the type of focus that can help you achieve your goals, overcome adversity, and realize your full potential, doesn’t mean the avoidance of negative thoughts or comments.
Positive thinking is the ability to feel negative when you have to and still maintain enough hope to keep on going.
A school of thought has developed that says you always have to turn negative thoughts into positive ones and avoid saying or thinking negative things. This is a denial of all that is human about us. The starting point for creating a better life is to understand what it means to be human and accept who and what we are. As humans, we are frail, imperfect, mistake-prone beings who can react in an emotional way to what happens to us.” Get more here: True Positive Thinking is Not the Absence of Negative Thoughts « Positively Positive.