I got the camera to look up and down but how do I make it look left and right. Here's my code

using System;
using UnityEngine;


public class CameraLook : MonoBehaviour
{
    public float mouseSpeed = 100f;
    public Transform playerBody;
    float xRotation = 0f;

    void Start()
    {
        Cursor.lockState = CursorLockMode.Locked;
    }
    void Update()
    {
        float mouseX = Input.GetAxis("Mouse X") * mouseSpeed * Time.deltaTime;
        float mouseY = Input.GetAxis("Mouse Y") * mouseSpeed * Time.deltaTime;


        xRotation -= mouseY;

        xRotation = Mathf.Clamp(xRotation, -90f, 90f);

        transform.localRotation = Quaternion.Euler(xRotation, 0f, 0f);

        playerBody.Rotate(Vector3.up * mouseX);

playerBody.Rotate(Vector3.up * mouseY); but it didn't work.