unity how to change text in script

// To change text of a text UI element use th combination below
textGameObject.GetComponent<UnityEngine.UI.Text>().text = "text";

Text myText = GameObject.Find("Canvas/Text").GetComponent<Text>();
myText.text = "Your text changed!";

using UnityEngine.UI;
using TMPro;

void Update()
{
    TextMeshPro lemonsss = GetComponent<TextMeshPro>();
}