How do you genuinely become a better person?

Read about other people's experiences from all walks of life and do your best to understand why they're doing what they're doing. Study statistics, economics, and sociology. Volunteer for a cause you believe in. Take note of good things that happen to you, and good things that you do. Train yourself out of feeling ashamed of things, even if they're legitimately bad. You're better off changing your behavior and building bridges with those you've wronged than you are giving up on it. Buy more Fair Trade and plant-based products if you can.