It's easy to mistime your bunnyhops which make this skill especially tricky to learn. Also known as 'bunny hopping' or 'strafe-jumping', this is the action of timing your jumps as you strafe to move faster than usual. More advanced players also recommend mastering the art of 'bhopping'. Pressing the wrong key will abruptly halt your momentum and could wipe you out. For example, if you're about to make a left turn, guide your crosshair to the left, while holding A. Turning requires a harmonious balance between your key inputs and the direction you move your mouse.
Once you're comfortable with the basics of movement you can begin to attempt turns.