You quite right. The Sun was formed around 5 billion years ago with the Earth 3 to 5 hundred million years later.
Estimates to when the first organism appeared vary from a few hundred million years to a billion years later mainly because the most ancient rocks discovered are about a 3 .5 billion years old and they contain simple organisms.
Estimates to when the first organism appeared vary from a few hundred million years to a billion years later mainly because the most ancient rocks discovered are about a 3 .5 billion years old and they contain simple organisms.