Help: My timed enemy attack is not attacking at all.

Hey there! Well I've been working on this mechanic for a while now (an embarrassing amount of weeks) and was unable to get it working properly so I decided to see if anyone else experienced this, but I couldn't find any other issues like this, so I came here for help.

So basically, I want my enemy to follow the player, stop once in attack range, wind up an attack (part of the attack animation), then once the animation visibly smashes I want the box collider to activate and trigger if the player is there. The time interval between attacks would be 2 seconds, but if the player escapes the attack I want the enemy to become stuck for double the interval, 4 seconds, until it's free to either move or attack again.

This is the script thats giving me the issues, it's connected to a box collider around the area of the enemy that detects the player, note: this does not damage the player it only detects it to then enable the actual collider that damages the player. These are the variables I'm using:

     public GrimaceBehaviour Grim;           //Main controller
     public Collider2D GrimSmash;            //The attack's collider
     public FollowDetect follow;             //The follow collider/script
 
     public float attkTimer = 2f;           //Attack interval
 
     public float attkCD;                    //Variable to set to interval
     public int attkDmg = 2;                 //The attack's damage
 
     [HideInInspector]
     public bool attacking;                  //Attack anim
     [HideInInspector]
     public bool stuck;                      //Stuck in ground anim
     [HideInInspector]
     public bool inRange = false;
     public bool canAttk = false;

These are the methods:

 public void Start()
     {
         attkCD = attkTimer;
         Grim = gameObject.GetComponentInParent<GrimaceBehaviour>();   
         GrimSmash.enabled = false;
         follow.enabled = true;
         
     }
 
     void Update()
     {
 
 
             if (attacking == true && canAttk)
             {             
                 follow.enabled = false;     //stops enemy from moving
             }
             else
             {
                 follow.enabled = true;      //starts movement
                  
             }
         
       }
 
 
 
 
     public void OnTriggerStay2D(Collider2D col)
     {
         
      
 
            if (attkCD > 0)
             {
                 if (col.CompareTag("Player"))
                 {
                     inRange = true;
                     follow.enabled = false;
                     attacking = false;
                     attkCD -= Time.deltaTime;   //countdown to attack
 
                 }
 
             }
             else
             {
                 canAttk = true;
                 Grim.anim.SetBool("Attack", true);
                 Pause();
                 GrimSmash.enabled = true;
                 attkCD = attkTimer;                 //resets countdown       
 
 
             }
 
     }
 
     public void OnTriggerExit2D(Collider2D col)
     {
         if (col.CompareTag("Player"))
         {
             inRange = false;
             follow.enabled = true;
         }
     }
 
     IEnumerator Pause()
     {
         yield return new WaitForSecondsRealtime(2f);
     }
 }

Any insights you can give are greatly appreciated. I know my code can be hard to follow, so if any further clarification is needed I will gladly give it. Thank you very much if you try and assist me, I can admit I dearly need it.