Um, yes they do, they play a role in your yaw control. Try to keep the wings level and remember which way is up and which way is down on your sticks. Also try to maintain your throttle, only use full if even, on take off. This is really important: Have someone launch it for you. A lot of your crashes occurred on take off, and it is best for beginners to have both hands on the sticks. Also try to stick to daytime, your second video was fine. Night flying is a much more difficult way to fly, especially without lights on the model. Best of luck to you and your new hobby!