Climbing Not Working as Intended

I'm a newbie making a game where I want my character to climb all colliders such as box, mesh, etc... After watching about 20 tutorials, I have a bit of code that sort've works. My main character (a cylinder) can jump upwards and stick to cubes, a bridge I made, etc... and move sideways, however not upwards. Here's my code:

I'm learning lots but could really use some help as to why I can't move my first person cylinder upwards. Thanks for reading this!

 using System.Collections;
  using System.Collections.Generic;
  using UnityEngine;
  
  public class Test : MonoBehaviour
  {
  
      GameObject playerOBJ;
      bool canClimb = false;
      float speed = 1;
  
      void OnCollisionEnter(Collision coll)
      {
          if (coll.gameObject.tag == "Player")
          {
              canClimb = true;
              playerOBJ = coll.gameObject;
          }
      }
  
      void OnCollisionExit(Collision coll2)
      {
          if (coll2.gameObject.tag == "Player")
          {
              canClimb = false;
              playerOBJ = null;
          }
      }
      void Update()
      {
          if (canClimb)
          {
              if (Input.GetKey(KeyCode.W))
              {
                  playerOBJ.transform.Translate(new Vector3(0, 1, 0) * Time.deltaTime * speed);
              }
              if (Input.GetKey(KeyCode.S))
              {
                  playerOBJ.transform.Translate(new Vector3(0, -1, 0) * Time.deltaTime * speed);
              }
          }
      }
  }