How to make the player turn in the air

Hey so im trying to make my player turn in the direction its looking in the air but i cant make it to work everytime i jump i can only jump that way i was looking when i jump here is my playercontroller script

 public void Update()
    {
        playerCam.fieldOfView = playerFov;

        if (Input.GetKeyDown(KeyCode.Escape))
        {
            pauseMenu.Pause();
        }

        if (playingMode == true)
        {
            Cursor.lockState = CursorLockMode.Locked;
            Cursor.visible = false;

            rigidBody.isKinematic = false;
            GameObject playerCam = GameObject.Find("Player_Camera");

            if (cc.isGrounded)
            {
                moveDirection = new Vector3(Input.GetAxis("Horizontal"), 0, Input.GetAxis("Vertical"));
                moveDirection = transform.TransformDirection(moveDirection);
                moveDirection *= currentSpeed;
                if (Input.GetButton("Jump"))
                {
                    Jump();
                }
                else if (Input.GetButton("Jump") && !cc.isGrounded)
                {
                    ;
                }
            }

            moveDirection.y -= _gravity * Time.deltaTime;
            cc.Move(moveDirection * Time.deltaTime);

            //Ændre for at ændre på sensivity
            float xMouse = Input.GetAxis("Mouse X") * 5f;
            transform.Rotate(0, xMouse, 0);

            //Så kan man ikke se 360 grader rundt
            pitch -= Input.GetAxis("Mouse Y") * 10f;
            pitch = Mathf.Clamp(pitch, -70f, 70f);
            Quaternion camRotation = Quaternion.Euler(pitch, 0, 0);
            playerCam.transform.localRotation = camRotation;

            //Gør så man kan løbe
            if (Input.GetKeyDown(KeyCode.LeftShift))
            {
                isSprinting = true;
                Sprint();
            }
            else if (Input.GetKeyUp(KeyCode.LeftShift))
            {
                isSprinting = false;
                Sprint();
            }
        }
    }

    public void Jump()
    {
        moveDirection.y = _jumpSpeed;
        //Remove stamina
    }

Your movement direction code only works when you are grounded. You can move it to your update or Fixed update instead and just use grounded as a jump test.