I have been told ever since I was a little shit that when you die you go to heaven first wait in line for St Peter to judge you at the pearly gates? Is this in the Bible? I thought god did judging

Matthew 19:28

Jesus said to them, “Truly I tell you, at the renewal of all things, when the Son of Man sits on his glorious throne, you who have followed me will also sit on twelve thrones, judging the twelve tribes of Israel.

[end quote]

Whether "12 tribes of Israel" here is figurative of the global church or not, there still definitely some role in judgement delegated out to the apostles.