Scriptable Objects as a datatable

I am trying to use Scriptable objects as a datatable of all of my skills as estated in this video Overthrowing the MonoBehaviour Tyranny in a Glorious Scriptable Object Revolution

I have a Scriptable Object that contains an array of skills

 [System.Serializable]
 public class Skill
 {
     public int idSkill;
     public string title;
     public Sprite imagen;
     public string descripcion;
     public bool desbloqueado;
     public int precio;
     public GameObject skillScript;
 }

 public class SkillData : ScriptableObject
 {
     public  Skill[]  skills;
 
     public void OnEnable()
     {
         if ( skills== null)  skills = Resources.Load< SkillData>("Data/ SkillData"). skills;
     }
 }

I have created an object of type SkillData and filled it manually with the data of the skills ( Title,descripcion,image...etc) and It works, however If 'accidentaly' set the element array size of the object 'SkillData' to 0 or use this statament

 public class SkillData : ScriptableObject
 {
     public  Skill[]  skills;
 
     public void OnEnable()
     {
         // Since my SkillData already created object is a SkillData type, when unity enable it call this fuction and erase my data
          skills = new Skill[1];
     }
 }

All of my work will be deleted like if a do DROP Database ( on a real database),

It is very easy to erase all of the data by accident , so the question is

I am missing something? It is any way to ensure that the data will persist even if I erase all of the data? Is there any way to 'force' unity ask you if you are sure to delete data or something similar? Is there a better way to store data in order to evade the erase of it?

Thanks in advance