How do I become a better person?  

To be a better on this planet for oneself is to know deeply your self-competency. What you have most. Let say you are very talkative or having an authoritative talking person.

So you are most likely to falls into marketing line, But not for selling line. So works for it by having those criteria; specific_measurable_achievable_reachable_time frame_exciting_rewarding or its abbreviation is SMARTER SYSTEM.

If you've ready for that, prepare for your long term goal with systematic long term goal with your vision, mission, objective, competency, managerial ability, technical proficiency and sources of fund.

Take self motivation by referring to your given name and look for utmost good meaning that you wanna be, let say for this;
NAEM
N - for what?
A - aggressive
E - excellent
M - for what.

Inculcates your mind with all those words everyday and I firmly believe that someday you definitely be a better man.