How do I call a method from another script?

I have been searching the web for a long time, but I can't find an answer that I can use. (This is my first Unity game ever. I'm following a course on youtube and copy what he does. Just for learning how to do things. So I tried to make my own ammo system, where I almost did the same as he did with health(I have removed health, so it's easier to read.), and I finally got it to work (along with some errors I had to fix by making this script a little strange, which you might notice).). The method in the player script is called "UseAmmo", and is supposed to decrease my ammo by. The problem is that I don't know how to call it from the weapon script when I shoot. Please help me :D Here's my player script:

using UnityEngine; using System.Collections;

public class Player : MonoBehaviour {

 [System.Serializable]
 public class PlayerStats
 {
     [SerializeField]
     private StatusIndicator statusIndicator;

     public static int WeaponDamage = Random.Range(1, 1);

     public int maxAmmo = 200;
     public int startAmmo = 50;

     private int _curAmmo;
     public int curAmmo
     {
         get { return _curAmmo; }
         set { Mathf.Clamp(value, 0, maxAmmo); }
     }
     

     public void Init()
     {
         _curAmmo = startAmmo;
     }
     public void UseAmmo(int minAmmo)
     {
         _curAmmo -= minAmmo;
         if (_curAmmo == 0)
         {
             nullifyDamage();
         }
         // statusIndicator.SetAmmo(curAmmo, maxAmmo);
     }
     public void GetAmmo(int plusAmmo)
     {
         _curAmmo += plusAmmo;
         if (_curAmmo > 0)
         {
             createDamage();
         }
         statusIndicator.SetAmmo(curAmmo, maxAmmo);
     }
     public void nullifyDamage()
     {
         WeaponDamage = 0;
     }
     public void createDamage()
     {
         WeaponDamage = Random.Range(20, 50);
     }
 }

public PlayerStats stats = new PlayerStats();

 [SerializeField]
 private StatusIndicator statusIndicator;

 void Start()
 {
     
     stats.Init();

     if (statusIndicator == null)
     {
         Debug.LogError("No status indicator referenced on Player");
     }
     if (statusIndicator != null)
     {
         statusIndicator.SetAmmo(stats.curAmmo, stats.maxAmmo);
     }
 }

//More script down there, which doesn't matter

And now a little bit of my weapon script (which is working fine besides the problem I mentioned). I have also removed the parts of the script that didn't matter:

using UnityEngine; using System.Collections;

public class Weapon : MonoBehaviour { void Shoot() { // I would like to call the method here. } // More script

}