“People are their own worst enemies”

I disagree with this statement. Rather, they can be their own worst enemy if the circumstances they’re under causes it. I’ve always believed that no matter what happens to me, the way I feel about a situation is all depending on my perception. My perception is most greatly influenced by the state of self-esteem I have at the moment. With a high self-esteem, I tend to take constructive feedback and develop myself whilst when my esteem is down the drain, I only think of destructive thoughts and break my mentality. There are people in my life that build my self-esteem whilst there are some people that knock it down. True enemies, in my opinion, are the people that deliberately hurt your sense of self-worth to make you your own enemy.