what are the positives of being a psychologist?

You get to help people with their everyday issues such as domestic abuse, or family issues, or even social anxiety and helping people feel better about themselves in general and you can even go into specialties and help with the veterans that feel that they have no one to talk too  as they feel no one understands what they have been through especially with their PTSD.

Helping others. Can you imagine not being able to trust your own mind?

I'm no psychologist, however I did take an elective course wherein we were introduced to the various concepts. Knowing how humans work at a fundamental level helps you become more aware, empathetic and understand your peers better. You become more level headed and can relate people's reactions and mannerisms to ideas you learnt in your course. This helps you become a calm and composed person capable of handling any social situation.