How to use Input.GetTouch().phase properly

Hi! I'm making a mobile game in which, when you touch any part of the screen it shoots towards that point. In the game I have a UI with a joystick and another button to place a mine when it is pressed.

The problem is that when the player touches the screen to place the mine, the mine is placed, but it also shoots (and that's what I don't want).

I've been using the Input.GetTouch().phase method until now but it doesn't work for me. Am I doing it wrong or is there another way to check when a player touches a button or another part of the screen?

Mine button calls PutMine()

     protected virtual void HandleMines()
     {
         if (consecutiveMines == 0)
         {
             nextMineTime = Time.time + cooldownMine;
             consecutiveMines++;
         }
         if ((Time.time > nextMineTime) && putMine)
         {
             Instantiate(mine, transform.position + Vector3.up * 0.2f, transform.rotation);
             consecutiveMines--;
         }
     }
 
     public void PutMine()
     {
         putMine = true;
     }

And the shoot code is as follows:

     protected virtual void HandleShooting()
     {
         if (consecutiveBullets > 0 && nextShootTime2 < Time.time)
         {
             consecutiveBullets = 5;
         }
         if (consecutiveBullets == 0)
         {
             nextShootTime = Time.time + COOLDOWN_SHOOT;
             consecutiveBullets = 5;
         }
         if (imMoving)
         {
             if (Input.touchCount >= 2)
             {
                 if (Input.GetTouch(1).phase == TouchPhase.Began && Time.time > nextShootTime && Time.time > nextShootTime3 && UiController.CanShoot() && !putMine)
                 {
                     nextShootTime3 = Time.time + 0.3f;
                     GameObject bulletObj = Instantiate(bullet, fireStart.position, mCanon.rotation);
                     bulletObj.SendMessage("ImPlayer");
                     bulletObj.GetComponent<Rigidbody>().velocity = bulletSpeed * mCanon.forward;
                     consecutiveBullets--;
                     nextShootTime2 = Time.time + COOLDOWN_SHOOT;
                 }
                 else
                 {
                     putMine = false;
                 }
             }
   
         }
         else
         {
             if(Input.touchCount >= 1)
             {
                 if (Input.GetTouch(0).phase == TouchPhase.Began && Time.time > nextShootTime && Time.time > nextShootTime3 && UiController.CanShoot() && !putMine)
                 {
                     nextShootTime3 = Time.time + 0.3f;
                     GameObject bulletObj = Instantiate(bullet, fireStart.position, mCanon.rotation);
                     bulletObj.SendMessage("ImPlayer");
                     bulletObj.GetComponent<Rigidbody>().velocity = bulletSpeed * mCanon.forward;
                     consecutiveBullets--;
                     nextShootTime2 = Time.time + COOLDOWN_SHOOT;
                 }
                 else
                 {
                     putMine = false;
                 }
             }
         }
     }