Good conduct means a safe and smooth life.

If you have a good personality and behave properly, your life will be stable and safe, and things will go smoothly.

To follow the rules means to follow the rules and behave properly, so that your life will be stable and things will be smooth.

Character refers to moral quality, that is, moral quality, also known as virtue or character, which is a stable tendency and characteristic when individuals act according to certain moral behavior standards.