watch these; https://www.youtube.com/watch?v=VXyJeBxp2VI https://www.youtube.com/watch?v=EJDEhhN4stQ https://www.youtube.com/watch?v=z8Z33aaRxHs https://www.youtube.com/watch?v=9V0y0aX4SnE https://www.youtube.com/watch?v=yxhJZrmVKaY https://www.youtube.com/watch?v=-HNGX82zUqY https://www.youtube.com/watch?v=1p_6OyZSBLk
