If you want to keep your Christmas tree alive, you can do a few things. First, make sure to water it regularly so that it stays hydrated. You can also wrap it in a blanket or put it in a warm place if the weather gets cold. Additionally, you can add some fertilizer to the soil to help it stay healthy. Finally, make sure to keep your tree away from any sources of heat, like a fireplace or heater, as this can dry it out quickly.