animations not working help?

Hello! this is kinda my first FPS project. The movement part works fine, but when i try adding animations it doesnt work. sometimes it plays fine when i press W, but everything else just F***s up?
idk if someone got more info on how to do this? tyvm



```
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class PlayerMovement : MonoBehaviour
{

//Variables
[SerializeField] private float moveSpeed;
[SerializeField] private float walkSpeed;
[SerializeField] private float runSpeed;

private Vector3 moveDirection;
private Vector3 velocity;

[SerializeField] private bool isGrounded;
[SerializeField] private float groundCheckDistance;
[SerializeField] private LayerMask groundMask;
[SerializeField] private float gravity;

[SerializeField] private float jumpHeight;

//Refferences
private CharacterController controller;
private Animator anim;

private void Start()
{
controller = GetComponent<CharacterController>();
anim = GetComponentInChildren<Animator>();
}

private void Update()
{
Move();
}

private void Move()
{
isGrounded = Physics.CheckSphere(transform.position, groundCheckDistance, groundMask);

if(isGrounded && velocity.y < 0)
{
velocity.y = -2f;
}

float moveZ = Input.GetAxis("Vertical");
float MoveX = Input.GetAxis("Horizontal");

moveDirection = new Vector3(MoveX, 0, moveZ);
moveDirection = transform.TransformDirection(moveDirection);

if (isGrounded)
{
if (Input.GetKeyDown(KeyCode.Space))
{
Jump();
}

}

if (moveDirection != Vector3.zero && !Input.GetKey(KeyCode.LeftShift))
{
Walk();
}
else if (moveDirection != Vector3.zero && Input.GetKey(KeyCode.LeftShift))
{
Run();
}
else if (moveDirection == Vector3.zero)
{
Idle();
}

moveDirection *= moveSpeed;

controller.Move(moveDirection * Time.deltaTime);

velocity.y += gravity * Time.deltaTime;
controller.Move(velocity * Time.deltaTime);
}

private void Idle()
{
anim.SetFloat("MoveX", 0, 0.1f, Time.deltaTime);
}

private void Walk()
{
moveSpeed = walkSpeed;

if (Input.GetKey(KeyCode.W))
{
anim.SetFloat("MoveX", 1, 0.1f, Time.deltaTime);
}

if (Input.GetKey(KeyCode.S))
{
anim.SetFloat("MoveX", -1, 0.1f, Time.deltaTime);
}

if (Input.GetKey(KeyCode.D))
{
anim.SetFloat("MoveZ", 1, 0.1f, Time.deltaTime);
}

if (Input.GetKey(KeyCode.A))
{
anim.SetFloat("MoveZ", -1, 0.1f, Time.deltaTime);
}

}

private void Run()
{
moveSpeed = runSpeed;
}

private void Jump()
{
velocity.y = Mathf.Sqrt(jumpHeight * -2 * gravity);
}

}
```