Start with a single haul. Grasp the line near the rod with your off hand. There should be little or no slack between the rod and your hand. Wrap four fingers around the line with the back of your hand facing away from you. As you start your forward cast twist your wrist rapidly so the back of your hand ends up on top or on the bottom depending on which seems more natural to you. This will increase line speed and pull slack out of the line if your timing is off. Practice this for a few days and then look at videos on the double haul only when you're sure you have mastered the basic cast. Look behind you and see if your backcast is opening up correctly; is fully opened up into a straight line, preferably parallel to the ground. Start the forward cast immediately when the backcast is fully opened. Remember your rod is designed to work with thirty feet of line plus the leader out of the tip. Less than that won't load the rod. More than that calls for more experience to cast. Practice casting that line and when you're comfortable with doing so just have some extra line in your hand you can release as the fly reaches the end of the cast. If you have accelerated the rod tip rapidly enough and made a sudden stop with the single haul it should shoot some line. Your rod is not one designed for distance fishing as it casts a light line (less momentum to drag out more line) and is shorter than many which reduces tip speed (shorter lever) but you should still be able to shoot line with it.