Much later
As we said, you may give your kid everything and try your best to be a good parent, but you will never know if you did a great job until later. Only years after, when they grow up will you figure out what kind of impression your parenting skills had on them.
If they are rude and arrogant people, you may have messed up somewhere along the line. If they are kind and giving, then you know that you did alright. No one is perfect at the end of the day, so don’t feel bad if you have some flaws in your personality.