Making RigidBody face direction for movement

so i have a gameobject with a rigidbody attached and it currently moves fine with the code i have, the problem is that when it moves from input currently it doesnt face the direction its moving, i tried to fix this by adding some rotation code but this messes up the movement as it turns does stuff like the player moving forward whilst facing the opposite way, so my question is how do i make the gameobject face the way its going so that what ever direction is pressed the player rotates to that direction then goes forward in that direction, if that makes sense.

heres my code below with the non working rotation code included for abit of context

 void FixedUpdate()
 {
    myMove = new Vector3(ControllerInputs.controllerInputs.LeftLR, 0,         
    ControllerInputs.controllerInputs.LeftUD);
   
    if (grounded)
    {
       Quaternion rotation = Quaternion.LookRotation(myMove, Vector3.up);
       transform.rotation = rotation;

       targetVelocity = myMove;
       targetVelocity = transform.TransformDirection (targetVelocity);
       targetVelocity *= speed;
       Vector3 velocity = rigidbody.velocity;
       Vector3 velocityChange = (targetVelocity - velocity);
       velocityChange.x = Mathf.Clamp (velocityChange.x, -maxVelocityChange,
                                 maxVelocityChange);
       velocityChange.z = Mathf.Clamp (velocityChange.z, -maxVelocityChange,
                                     maxVelocityChange);
       velocityChange.y = 0;
       rigidbody.AddForce (velocityChange, ForceMode.VelocityChange);
       if (canJump) 
       {
           if(Input.GetButtonDown ("Jump"))
       {
       rigidbody.velocity = new Vector3 (velocity.x, CalculateJumpVerticalSpeed (), velocity.z);
       }        


       rigidbody.AddForce (new Vector3 (0, -gravity * rigidbody.mass, 0));
       grounded = false;
 }

 void OnCollisionStay(Collision col)
 {
      if(col.transform.name == "Plane")
      grounded = true;
 }

 float CalculateJumpVerticalSpeed()
 {
     return Mathf.Sqrt (2 * jumpHeight * gravity);
 }