Success is something you should only use to measure your own progress from what you were to what you are now. You shouldn’t measure your own success by comparing your life to another’s. It will just make you unhappy in the end. Everyone progresses at different rates, and they all define success differently.
As for whether or not wanting to be successful at a young age is healthy…I’m not a doctor, but I would think that if such a desire leads to you endangering your mental or physical health (eating poorly, insomnia, addiction, depression, etc), it’s become a problem that you should seek help for. From the right people, of course.
Good luck with whatever you’re trying to succeed at (Life in general? You were kind of fucking vague),
-The Sudden Adult