Error CS1252: Unexpected symbol `private'

using UnityEngine;
using UnityEngine.UI;
using UnityEngine.SceneManagement;

public class GameState : MonoBehaviour {

    private bool gameStarted = false;
    [SerializeField]
    private Text gameStateText;
    [SerializeField]
    private GameObject player;
    [SerializeField]
    private BirdMovement birdMovement;
    [SerializeField]
    private FollowCamera followCamera;
    private float restartDelay = 3f;
    private float restartTimer; 
    private PlayerMovement playerMovement;
    private PlayerHealth playerHealth;



    // Use this for initialization
    void Start () {
        Cursor.visible = false;

        playerMovement = player.GetComponent<PlayerMovement> ();
        PlayerHealth = player.GetComponent <PlayerHealth> ();

        // Prevent the player from moving at the start of the game
        playerMovement.enabled = false;

        // Prevent the bird from moving at the start of the game
        birdMovement.enabled = false; 

        // Prevent the follow camera from moving to its game position 
        followCamera.enabled = false; 






    }

    // Update is called once per frame
    void Update () {
        // If the game is not started and the player presses the space bar...
        if (gameStarted == false && Input.GetKeyUp (KeyCode.Space)) {

            // ...then start the game
            StartGame();
        }

        // If the player is no longer alive...
        if (playerHealth.alive == false) {

            // ... then end the game.
            EndGame ();

            // ...increment a timer to count up to restarting...
            restartTimer = restartTimer + Time.deltaTime;

            // ...and if it reaches the restart delay...
            if (restartTimer >= restartDelay) {
                SceneManager.LoadScene (SceneManager.GetActiveScene ().buildIndex); 
        }

        private void StartGame() { 

            // Set the game state
            gameStarted = true;

            // Remove the start text
            gameStateText.color = Color.clear;

            // Allow the player to move
            playerMovement.enabled = true; 

            // Allow the bird to move
            birdMovement.enabled = true;

            // Allow the camera to move
            FollowCamera.enabled = true; 

        }

        private void EndGame() {

            // set the game state
            gameStarted = false;

            // Show the game over text
            gameStateText.color = Color.white;
            gameStateText.text = "damn you trash lmao";

            // Remove the player from the game 
            player.SetActive (false);
        }


}