How do you feel about those trying to succeed where you have failed?
It is natural to approach this with negativity. Certainly, someone achieving what you could not achieve will mean you are not good enough. It will put a spotlight on your shortfall. It will make others think less of you. It will make way for negative comments. It will preclude future opportunities.
That’s not so. And you are better off if you not measure your worth by comparison with others.
Think instead: how can I help them, so that they will not make the same mistakes I have made?
And: what can I learn from their process, so that I will be more ready next time?