Help me with my score

How do I lower my score. I can win or I can lose, the score do

Are you referring to your rank, okkkk? If that’s what you’re referring to, it takes a while to improve that score, and some big wins will help.

What is the criteria determining your ranking? Is it just chip count or is there a metric factoring in fold-rates, success against higher rated players, etc.?

Just chip count.