Stop using the arrow keys and navigate the command line more quickly with
ctrl+A: moves to the start of the linectrl+E: moves to the end of the linectrl+B: move back one characterctrl+F: move forward one characteresc+B:move back one wordesc+F:move forward one wordctrl+U: delete from the cursor to the beginning of the linectrl+K: delete from the cursor to the end of the linectrl+W: delete from the cursor to the beginning of the current word