The Most Important Traits

I have been thinking a lot about character traits I want to refine and develop. I think kindness and bravery are definitely some I want to work on. I actually cannot stand arrogance and pride. Can people really change? Can you overcome your negative qualities that prevent you from being a fully present and Christ-like person? I think that character development will definitely be something I will be working on instead of focusing on my life map and OCD.