My character isn't moving

Can somebody help? I've tried my own code for moving character and codes from other people and Unity. im trying to make 2d game but my character just doesn't move. Here is the code i got. using UnityEngine; using System.Collections;

 public class Player: MonoBehaviour {
     private Transform myTransform;                // this transform
     private Vector3 destinationPosition;        // The destination Point
     private float destinationDistance;            // The distance between myTransform and destinationPosition
  
     public float moveSpeed;                        // The Speed the character will move
  
  
  
     void Start () {
         myTransform = transform;                            // sets myTransform to this GameObject.transform
         destinationPosition = myTransform.position;            // prevents myTransform reset
     }
  
     void Update () {
  
         // keep track of the distance between this gameObject and destinationPosition
         destinationDistance = Vector3.Distance(destinationPosition, myTransform.position);
  
         if(destinationDistance < .5f){        // To prevent shakin behavior when near destination
             moveSpeed = 0;
         }
         else if(destinationDistance > .5f){            // To Reset Speed to default
             moveSpeed = 3;
         }
  
  
         // Moves the Player if the Left Mouse Button was clicked
         if (Input.GetMouseButtonDown(0)&& GUIUtility.hotControl ==0) {
  
             Plane playerPlane = new Plane(Vector3.up, myTransform.position);
             Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
             float hitdist = 0.0f;
  
             if (playerPlane.Raycast(ray, out hitdist)) {
                 Vector3 targetPoint = ray.GetPoint(hitdist);
                 destinationPosition = ray.GetPoint(hitdist);
                 Quaternion targetRotation = Quaternion.LookRotation(targetPoint - transform.position);
                 myTransform.rotation = targetRotation;
             }
         }
  
         // Moves the player if the mouse button is hold down
         else if (Input.GetMouseButton(0)&& GUIUtility.hotControl ==0) {
  
             Plane playerPlane = new Plane(Vector3.up, myTransform.position);
             Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
             float hitdist = 0.0f;
  
             if (playerPlane.Raycast(ray, out hitdist)) {
                 Vector3 targetPoint = ray.GetPoint(hitdist);
                 destinationPosition = ray.GetPoint(hitdist);
                 Quaternion targetRotation = Quaternion.LookRotation(targetPoint - transform.position);
                 myTransform.rotation = targetRotation;
             }
         //    myTransform.position = Vector3.MoveTowards(myTransform.position, destinationPosition, moveSpeed * Time.deltaTime);
         }
  
         // To prevent code from running if not needed
         if(destinationDistance > .5f){
             myTransform.position = Vector3.MoveTowards(myTransform.position, destinationPosition, moveSpeed * Time.deltaTime);
         }
     }
 }