RaycardHit2D not working on Sprites?

I've taken out some of the code so its easier to read but being as there is 2 tags one for unpassable terran and one for tall grass, ive put the tall grass as more of a 3d raycast so they dont interfere with eachother but the tall grass only checks once and stops :\

 using UnityEngine;
 using System.Collections;
 
 public class PlayerStats : MonoBehaviour {
 
     Vector2 startPoint;
     Vector2 endPoint;
     public float speed;
     private float increment = 0;
     bool isMoving;
 
     public static int walkCounter;
     int walkCounter2;
     bool isInCombat;
     bool ableMove;
     RaycastHit2D hit;
     
     Animator anim;
     
     public GameObject CameraMain;
     public GameObject CameraCombat;
 
     public GameObject[] teleportLoc;
     
     
     void Start() {
         startPoint = transform.position;
         endPoint = transform.position;
         
         anim = GetComponent<Animator>();
         
         walkCounter2 = Random.Range(5,15);
     }
 
     void Update () {
         Animations();
 
         if(increment <= 1 && isMoving){
             increment += speed/100;
         }
         else
             isMoving = false;
         
         if(isMoving)
             transform.position = Vector2.Lerp(startPoint, endPoint, increment);
 
         if (!isInCombat)
         {
             else if(Input.GetKey("a") && !isMoving)
             {
                 if (Physics2D.Raycast (transform.position, -Vector2.right, 1))
                 {
                     hit = Physics2D.Raycast (transform.position, -Vector2.right, 1);
                     if(hit.collider.tag == "Collision") {
                         ableMove = false;
                     }
                 }
 
                 if(ableMove)
                 {
                     calculateWalk();
                     increment = 0;
                     isMoving = true;
                     startPoint = transform.position;
                     endPoint = new Vector2(transform.position.x - 1, transform.position.y);
                 }
                 ableMove = true;
             }
         }
     }
     
     void calculateWalk () {
 
         if(Physics.Raycast(transform.position, Vector3.forward, 1))
         {
             walkCounter++;
             Debug.Log(walkCounter);
         }
 
         if(walkCounter >= walkCounter2) {
             walkCounter2 = Random.Range(5,15);
             walkCounter = 0;
             enterCombat();
         }
     }