Check if a particular gameobject was clicked

Hello there! I quite new to unity and I have a problem about clicking a particular gameobject. I tried to find ways how to "add an event listener" to a gameobject since that functionality is available only to UI components. It tried to use RaycastHit2D since i m working on a 2D game and it works, but not in the way I would like. What I meant by that is that whenever I click on an object of a kind there is a response from every gameobject of that kind. To help you understand better what I explained, I would post my code:

 void Update()
     {
         if (Input.GetMouseButtonDown(0))
         {
             Vector3 mousePos = Camera.main.ScreenToWorldPoint(Input.mousePosition);
             Vector2 mousePos2D = new Vector2(mousePos.x, mousePos.y);
 
             RaycastHit2D hit = Physics2D.Raycast(mousePos2D, Vector2.zero);
             if (hit.collider != null)
             {
                 Debug.Log("Stand " + hit.collider.gameObject.name + "was clicked");
             }
         }
     }

If I click, let's say, stand 4 I get 51 responses(if I have 51 gameobjects of that kind) with the text "Stand 4 was clicked".

My question is what should I do to get only one response with "Stand 4 was clicked"? Thank you for listening!