Learning From True Experts
When you're engaged in something creative, stay away from people who have given up on the dream you have just discovered. Most people do not suffer the loss of their dreams gracefully. Protect your new fledgling passion from that kind of negativity.
What's more, learn to listen for small negative comments. Envy comes in many shapes. "Constructive Criticism" is one of them.
I have worked with some vocal teachers who have had truly successful careers. In my experience, the more successful and happier they were, the less need they had to put others down. True experts teach with generosity. They understand how to encourage the next generation. They don't need to feel smarter than you and they delight in your progress.
So. Stay away from people where the vibe just doesn't match.
And only take advice from people who SUCCESSFULLY do what you want to do.