Never be jealous or envious of someone else's accomplishments.
Being unstoppable means you genuinely want what's best for everyone -- even those you would consider your competitors. Jealousy and envy are from the ego -- which operates out of fear.
The reason you are happy for other people's success is because their success has nothing to do with you.
You are in control of you.
And you are different from every other person.
There is no one who can do exactly what you can do.
You have your own superpower with your own unique ability to contribute. And that's what you're going to do.