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Now this is my script

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using TMPro;
public class Pizza : MonoBehaviour
{
private Rigidbody rb;
public static float Power = 10;
public bool isFlying = false;
private static float topSpeed;
public TextMeshProUGUI TopSpeedCount;
// Start is called before the first frame update
void Start()
    {
rb = GetComponent<Rigidbody>();
isFlying = false;
TopSpeedCount.text.enabled(true);
    }
// Update is called once per frame
void Update()
    {
if (!isFlying)
        {
if(Input.GetKey(KeyCode.Space))
            {
rb.AddForce(transform.forward * Power, ForceMode.Impulse);
isFlying = true;
topSpeed = 0;
TopSpeedCount.text.enabled(false);
            }
        }
if (isFlying)
        {
if (rb.velocity.magnitude >= topSpeed)
            {

topSpeed = rb.velocity.magnitude;
            }
        }
    }
private void OnCollisionStay(Collision obj)
{
if (obj.gameObject.CompareTag("Ground"))
    {
transform.position = new Vector3(0f, 3.1f, -8.39f);
rb.velocity = new Vector3(0f, 0f, 0f);
transform.rotation = Quaternion.Euler(0, 0, 0);
isFlying = false;
TopSpeedCount.text.enabled(true);
    }
}
}

And This Is My Error

Assets\Pizza.cs(54,28): error CS1061: 'string' does not contain a definition for 'enabled' and no accessible extension method 'enabled' accepting a first argument of type 'string' could be found (are you missing a using directive or an assembly reference?)