How to toggle an game object once and never again using set active method.,Toggle an object once and never be able to toggle it again

So I want to make my code to where i can only make myTarget appear once and cant disappear after that. But that’s not what’s happening. Every time i press Q it appears then when i press Q again it disappears. I know i have to put in a if myTarget is active then… but i don’t know what to put in after that.

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class inv : MonoBehaviour
{
    public GameObject m_Target;
    void Start()
    {
        m_Target.SetActive(false);
    }
    void Update ()
    {
        if ( Input.GetKeyDown(KeyCode.Q))
        {
            m_Target.SetActive(!m_Target.activeSelf);
        }
    }
}

@adastro17 This way it should be working the way you want

public class inv : MonoBehaviour
 {
     public GameObject m_Target;
     void Start()
     {
         m_Target.SetActive(false);
     }
     void Update ()
     {
         if ( Input.GetKeyDown(KeyCode.Q))
         {
             m_Target.SetActive(true);
         }
     }
 }