How to stop trying to change everyone?

Every time I understand or learn something new I keep sharing it with people. It's a waste of my time because they never listen but I keep doing it thinking I can change them or help them. I feel like I am wasting my life but it pains me to see people with problems that can easily be solved if only they would listen.

Examples are like when I know a way of improving someone's health. Or when I know a way of helping someone legally. Or when I know a way for someone to make money or start a business.

Why can't I just get on with my life and not try to help others😭😭😭😭😭😭

How to stop trying to change everyone?
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