No-one is better than you. We are all human beings. Someone may have achieved more in the time they have, but all that means is that they have been more productive, it doesn’t mean they are BETTER than you.
After all, we all go to the toilet the same and our blood is the same colour when we bleed regardless of what we “look” like, because we are all part of the human race.
So don’t feel intimidated if someone has achieved more. Just be respectful of them for their achievements, but remember you could do the same if you choose to. Especially if you repeat exactly the same things they did to get there.