Player Looking in Opposite Direction

Basically, if I move my reticle to the top of the screen, the player looks down and vice versa. This also applies horizontally. I am making a top down shooter. Take a look at what I mean:

And here is my code. Very simple.

 using UnityEngine;
 using System.Collections;
 
 [RequireComponent(typeof(CharacterController))]
 public class PlayerController : MonoBehaviour 
 {
     public float speed;
     public Texture2D reticle;
     public float reticleSensitivity;
 
     private CharacterController player;
     private Vector3 moveDir;
     private Transform myTransform;
     private Camera mainCam;
     private Vector3 lookDir;
     private float camDif;
     private Vector2 reticlePos;
 
     void Awake()
     {
         mainCam = Camera.main;
         myTransform = transform;
         camDif = mainCam.transform.position.y - myTransform.transform.position.y;
         player = GetComponent<CharacterController>();
     }
 
     void Update()
     {
         movement();
     }
 
     void movement()
     {
         reticlePos += new Vector2(Input.GetAxisRaw("360_RightStickHorizontal") * reticleSensitivity * Time.deltaTime, Input.GetAxisRaw("360_RightStickVertical") * reticleSensitivity * Time.deltaTime);
         reticlePos = new Vector2(Mathf.Clamp(reticlePos.x, 0, Screen.width), Mathf.Clamp(reticlePos.y, 0, Screen.height));
 
         lookDir = new Vector3(reticlePos.x, reticlePos.y, camDif);
         lookDir = mainCam.ScreenToWorldPoint(lookDir);
         myTransform.LookAt(lookDir);
         
         moveDir = new Vector3(Input.GetAxis("Horizontal"), 0f, Input.GetAxis("Vertical"));
         moveDir *= speed;
         
         player.Move(moveDir * Time.deltaTime);
     }
 
     void OnGUI()
     {
         GUI.DrawTexture(new Rect(reticlePos.x - 32, reticlePos.y - 32, 64, 64), reticle);
     }
 
 }