Psychology says people who are never happy with other's works and like to do things on their own aren't always arrogant or toxic: What this behavior reveals?

Psychology says people who are never happy with other's works and like to do things on their own aren't always arrogant or toxic. The behavior can be linked to perfectionism, anxiety, fear of failure, past disappointment, a need for control and difficulty trusting others. Psychology also explains how hyper-independence can affect collaboration, stress levels and relationships when a person feels safer doing everything alone.