How to fix my Life counter

I'm attempting to add a life counter to the UFO tutorial game. Ideally, whenever the UFO hits an enemy square, the life points are deducted by one. The problem I am currently having is that the counter for my lives is mimicking the counter that tracks the pickups. I would appreciate any insight!

public class PlayerControl : MonoBehaviour {

 public float speed; 
 
 public Text countText;
 public Text livesText;

 public Text winText;
 public Text winText2;
 public Text winText3;
 public Text loseText;

 private Rigidbody2D rb2d;      
 private int count;
 private int lives;

 
 void Start()
 {
     rb2d = GetComponent<Rigidbody2D>();

     count = 0;
     lives = 0;

     winText.text = "";
     winText2.text = "";
     winText3.text = "";
     loseText.text = "";

     SetLivesText();
 
     SetCountText();
 }

 void FixedUpdate()
 {
     float moveHorizontal = Input.GetAxis("Horizontal");
     float moveVertical = Input.GetAxis("Vertical");

     Vector2 movement = new Vector2(moveHorizontal, moveVertical);
     rb2d.AddForce(movement * speed);

     if (lives == 0)
     {
         SetLivesText();
     }

     if (Input.GetKey("escape"))
     {
         Application.Quit();
     }
        
 }

 void OnTriggerEnter2D(Collider2D other)
 {
     if (other.gameObject.CompareTag("Pentagon"))
     {
         other.gameObject.SetActive(false);
         count = count + 1;
         SetCountText();
     }

     if(other.gameObject.CompareTag("Enemy"))
     {
         lives--;
         SetLivesText();
     }

        
 }

 void SetLivesText()
 {
     livesText.text = "Lives: " + count.ToString();
    
     if (lives == 0)
     {
         loseText.text = "You have lost the game! Better luck next time!";
     }
 }

 void SetCountText()
 {
     countText.text = "Count: " + count.ToString();
     

     if (count >= 8)
     {
         winText.text = "Congragulations! You Win!";
         winText2.text = "Game created by ";
         winText3.text = "Challenge 1: UFO";
     }
    
 }
       

}