My Prefab goes crazy and it moves faster when i click in another thing of the unity editor or the scene even if that didn't suppose to happen

I'm making a enemy who throws axes with a parabolic movement. The enemy create the axe,and the axe is programmed with the parabolic movement. However,this just works when i click the prefab and appears in the inspetor tab or the enemy.When i click,for example,on the background or anything ,it goes crazy,the prefab moves faster and the axe goes higher.

Here is the video who shows what happens.

This is the enemy's code:

 public class Toaxe : MonoBehaviour
 {   private Animator anim;
     private Rigidbody2D rb;
     public float Time_attack;
     private float tiempo_de_ataque;
     public Transform brazo_hacha;
     public GameObject Hacha; 
     // Start is called before the first frame update
     void Start()
     {
         rb=GetComponent<Rigidbody2D>();
         anim = GetComponent<Animator>();
     }
     // Update is called once per frame
     void Update()
     {
         if (tiempo_de_ataque <= 0)
         {
             anim.SetTrigger("Axe");
             StartCoroutine(Axe());
             tiempo_de_ataque = Time_attack;
         }
         else
         tiempo_de_ataque -= Time.deltaTime;
     }
     IEnumerator  Axe()
     {
         yield return new WaitForSeconds(0.25f);      
         Instantiate(Hacha, brazo_hacha.position, Hacha.transform.rotation);
     }
 
 }

And this is the weapon's code:

 public class Toaxe_Axe : MonoBehaviour
 {
     public GameObject efecto_golpe;
     public LayerMask ThePlayer;
     public Transform Axe;
     public float radio;
     public float autodestruccion;
     private float destruccion;
     private Rigidbody2D rb;
     //Movimiento parabolico
     private float time;
     public float angle;
     private float gravity=9.8f;
     public float velocity;
     private float radialangle;
     private float x;
     private float y;
     // Start is called before the first frame update
     void Start()
     {
         rb = GetComponent<Rigidbody2D>();
         time = 0f;
         destruccion = autodestruccion;
         radialangle = Mathf.Deg2Rad * angle;
     }
     void FixedUpdate()
     {
         rb.velocity = new Vector2(x, y);
     }
     // Update is called once per frame
     void Update()
     {
         time += Time.deltaTime;
         x = time*velocity*Mathf.Cos(angle);
         y = y+ velocity*Mathf.Sin(angle)* time-(gravity*time*time)*0.5f;
         if (destruccion <= 0)
         {
 
             Destroy(gameObject);
         }
         else
         {
             Collider2D[] hit = Physics2D.OverlapCircleAll(Axe.position, radio, ThePlayer);
             foreach (Collider2D Player in hit)
             {
                 Debug.Log("Ataca a " + Player.name);
                 Player.GetComponent<protobot>().Jugador_Atacado();
                 if (efecto_golpe != null)
                 {
                     Instantiate(efecto_golpe, transform.position, Quaternion.identity);
                 }
                 Destroy(gameObject);
             }
             destruccion -= Time.deltaTime;
         }
     }

 }