Why do I only have left/right mouse movement

Keep in mind that only been looking into coding this past week and I'm not sure on how to make everything work for a simple first PersonController/Camera

I've been reading on how to create the code and I am the closest I've been on making it work using this.

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 [RequireComponent(typeof(Rigidbody))]
 public class FPController : MonoBehaviour {
 
     public float speed = 5f;
 
     private Transform cam;
     private Rigidbody rb;
     private Vector3 velocity = Vector3.zero;
     private float mouseSensitivity = 250f;
     private float verticalLookRotation;
     
     //use this for initialization
     void Start ()
     {
         rb = GetComponent<Rigidbody>();
         cam = Camera.main.transform;
     }
 
     //update is called once per frame
     void Update ()
     {
         float xMov = Input.GetAxisRaw("Horizontal");
         float yMov = Input.GetAxisRaw("Vertical");
         float zMov = Input.GetAxisRaw("Jump");
 
         Vector3 movHor = transform.right * xMov; // (1, 0, 0,)
         Vector3 movVer = transform.forward * yMov; // (0, 0, 1,)
         Vector3 movUp = transform.up * zMov; // (0, 1, 0,)
         velocity = (movHor + movVer + movUp).normalized * speed;
 
         transform.Rotate(Vector3.up * Input.GetAxis("Mouse X") * Time.deltaTime * mouseSensitivity);
         verticalLookRotation += Input.GetAxis("Mouse Y") * Time.deltaTime * mouseSensitivity;
         verticalLookRotation = Mathf.Clamp(verticalLookRotation,-60, 60);
         cam.localEulerAngles = Vector3.left * verticalLookRotation;
     }
 
      private void FixedUpdate()
     {
         if (velocity != Vector3.zero)
         {
             rb.MovePosition(rb.position + velocity * Time.fixedDeltaTime);
         }
     }
 }

After following The video on Coding First Person Controller

After following along and Checking over the code multiple times I see this in my console

If anyone that knows a bit more about this than I do could explain what I did wrong and how to fix it would make me very grateful! Thank you in advance!