Never wait until the last second before jumping: cars and logs don't stop for you. Study the speed pattern of each lane before moving β on the road, wait for a safe gap between cars; on the river, calculate where the log will be when you land on it, not where it is right now.
Aim for the nearest available home slot rather than always targeting the center. In later levels, turtles submerge more frequently β identify the most stable groups. Position yourself on the most advantageous side of the screen to keep your movement options open, and never jump without a clear view of your next landing spot.