Two Ways to Help By Personal Example
Trying to force another person to change is like telling All-That-Is that something about the person is less than valid. Trying to force another person to change will create mental resistance; will cause you to be viewed as insisting that his/her existence is invalid. Trying to force another person to change is only setting yourself up for frustration, confusion, and failure. It doesn't work.
Every person is one necessary component of the complete whole. Every individual determines how best to represent the component that they are. Individuals are the way they are because they have decided to be that way. Every individual's way is valid. Something about a person changes only when the individual him/herself decides that some belief, situation, goal, dream, or problem is now different.
What works is presenting options for the other person to consider. If the person perceives the option, he/she will then decide (according to their own preference) whether or not to live their own version of that option.
The method of presenting options to another person is by personal example. The way you live your life, day by day and moment by moment; these are the options you present. You are always teaching by example whether you mean to or not. Even when you are alone, your vibration and your essence permeate the ether of the universe.
Live your life, every moment, the way you want the world to be.