adding coins and Ui Scores

im making a platformer in Unity and i just added a score and coin function but everytime player goes to the next level the coin amount that the player collected resets I dont know why and I cant seem to find out why. Here is my code

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using TMPro;

public class CoinPicker : MonoBehaviour
{
    private float Coins = 0;
    public TextMeshProUGUI textcoins;

    private void OnTriggerEnter2D(Collider2D other) {
        if (other.transform.tag == "Coins") {
            Coins ++;
            textcoins.text = Coins.ToString();


            Destroy(other.gameObject);
        }
    }

}

Is your next level a new scene?

[quote]
Is your next level a new scene?
[/quote]
yes

[quote]
Is your next level a new scene?
[/quote]
does it need to be something different

To save a value to be accessed across all scenes, you can use PlayerPrefs. (although I recommend upgrading to something more secure later on) Here is your script updated to use PlayerPrefs:

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using TMPro;
public class CoinPicker : MonoBehaviour
{
    public TextMeshProUGUI textcoins;
    private void OnTriggerEnter2D(Collider2D other) {
        if (other.transform.tag == "Coins") {
            if (PlayerPrefs.HasKey("Coins"))
            {
                PlayerPrefs.SetInt("Coins", PlayerPrefs.GetInt("Coins") + 1);
            }
            else
            {
                PlayerPrefs.SetInt("Coins", 1);
            }
            PlayerPrefs.Save();
            textcoins.text = PlayerPrefs.GetInt("Coins").ToString();
            Destroy(other.gameObject);
        }
    }
}

This code will check if the PlayerPref "Coins" has a value. If not, set it to 1. If so, add one to the value. The value of coins will persist across all scenes.