Can only move character left or right, no foward or backwards.

Rookie coder here! Making my first controller script in C#. Using the new input system and the character controller instead of rigidbody.

Making a 3d game, expecting that I should be able to run around on X and Z axis with Y as my height/jump. However when I hit play I'm only able to move on my X axis perfectly fine, but no Z axis.

Either I'm missing something in the code or I'm misunderstanding something I have already written, in either scenario could somebody point me in the right direction?

 using System;
 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using UnityEngine.InputSystem;
 
 public class PlayerController : MonoBehaviour
 {
     [SerializeField]
     public float speed = 7;
     public float jumpHeight = 1.0f;
     public float gravityValue = -9.81f;
 
     private bool isGrounded;
 
     private PlayerControls playerControls;
     private Vector2 movement;
     private Animator animator;
     private CharacterController controller;
 
     private Vector3 playerVelocity;
 
     private void Awake()
     {
         animator = GetComponent<Animator>();
         controller = GetComponent<CharacterController>();
 
         playerControls = new PlayerControls();
         playerControls.Player.Move.performed += ctx => movement = ctx.ReadValue<Vector2>();   
     }
 
 
     private void OnEnable()
     {
 
         playerControls.Player.Enable();
         playerControls.Player.Move.Enable();
 
         playerControls.Player.Roll.performed += DoRoll;
         playerControls.Player.Roll.Enable();
 
     }
 
     private void DoRoll(InputAction.CallbackContext obj)
     {
         Debug.Log("Roll!");
     }
 
     private void OnDisable()
     {
         playerControls.Player.Disable();
         playerControls.Player.Move.Disable();
         playerControls.Player.Roll.Disable();
     }
 
 
     private void FixedUpdate()
     {
 
         isGrounded = controller.isGrounded;
         if (isGrounded && playerVelocity.y < 0)
         {
             playerVelocity.y = 0f;
         }
 
         float x = movement.x;
         float y = movement.y;
 
 
         animator.SetFloat("inputX", x);
         animator.SetFloat("inputY", y);
 
         movement = playerControls.Player.Move.ReadValue<Vector2>();
         movement.y = 0f;
         playerVelocity = movement * speed;
 
         playerVelocity.y += gravityValue * Time.deltaTime;
         controller.Move(playerVelocity * Time.deltaTime);
     }
 }