Resetting the level without changing variables

Hallo. I want to reset my level like a respawn type of thing. But I have variables like a score system in other scripts. Like I have a score system that everytime you reset the level you lose a score. But everytime that the level resets, all the variables resets. Any ideas? The script is in C#. Here is my script:

 using UnityEngine;
 using System.Collections;
 
 public class Resetter : MonoBehaviour {
 
     public Rigidbody2D projectile;            //    The rigidbody of the projectile
     public float resetSpeed = 0.025f;        //    The angular velocity threshold of the projectile, below which our game will reset
     public Sprite newSprite;
     
     private float resetSpeedSqr;            //    The square value of Reset Speed, for efficient calculation
     private SpringJoint2D spring;    //    The SpringJoint2D component which is destroyed when the projectile is launched
     
     void Start ()
     {
         //    Calculate the Resset Speed Squared from the Reset Speed
         resetSpeedSqr = resetSpeed * resetSpeed;
 
         //    Get the SpringJoint2D component through our reference to the GameObject's Rigidbody
         spring = projectile.GetComponent <SpringJoint2D>();
     }
     
     void Update () {
         //    If we hold down the "R" key...
         if (Input.GetKeyDown (KeyCode.R)) {
             //    ... call the Reset() function
             Reset ();
         }
 
         //    If the spring had been destroyed (indicating we have launched the projectile) and our projectile's velocity is below the threshold...
         if (spring == null && projectile.velocity.sqrMagnitude < resetSpeedSqr) {
             //    ... call the Reset() function
             Reset ();
         }
     }
     
     void OnTriggerExit2D (Collider2D other) {
         //    If the projectile leaves the Collider2D boundary...
         if (other.GetComponent<Rigidbody2D>() == projectile) {
             //    ... call the Reset() function
             Reset ();
         }
     }
     
 
     void Reset () {
         //    The reset function will Reset the game by reloading the same level
         Application.LoadLevel (Application.loadedLevel);
     }
 }