The stardust is a given. As for sunlight, all the energy including somewhat arguably geothermal (using the suns gravity to help form the earth and I guess radioactive material being formed by other stars) comes from the sun and gets converted into chemical energy you eat so you’re stardust animated by sunlight (mainly).
Your contribution to increasing entropy is so incredibly insignificant… you could spend your entire life constructing and detonating hydrogen bombs and not contribute as much increased entropy to the galaxy as a single nano second of what the stars are doing.