How to disable box collider for a couple seconds

Unity Engine
,
1 
public class GroundTile : MonoBehaviour
{

    GroundSpawner groundSpawner;

    // Start is called before the first frame update
    void Start()
    {
        groundSpawner = GameObject.FindObjectOfType<GroundSpawner>();
    }

    private void OnTriggerEnter(Collider other)
    {
            ScoreManager.instance.AddPoint();
    }

    private void OnTriggerExit(Collider other)
    {
        groundSpawner.SpawnTile();
        Destroy(gameObject, 2);
    }
}

currently everytime the player goes over the object the score keeps going up as they touch the collider for a couple seconds but I just want them to touch it once and get 1 point added to score not multiple. Then move onto the next platform and get another point added.

2

Create a bool called scored. Check if it’s false inside OnTriggerEnter, if so, then set it to true and add a point.

3 
public class GroundTile : MonoBehaviour
{

    GroundSpawner groundSpawner;

    // Start is called before the first frame update
    void Start()
    {
        groundSpawner = GameObject.FindObjectOfType<GroundSpawner>();
    }

    private void OnTriggerEnter(Collider other)
    {
            ScoreManager.instance.AddPoint();
            groundSpawner.SpawnTile();
            Destroy(gameObject, 2); // destroys game onject in 2 seconds.
            Destroy(this); // destroys this component at end of frame preventing TriggerEnter being invoked again. 
    }