Facing problem with my character

Can any one help me with this problem

as when i apply this script to my character then my character goes through walls and other objects and there is no collisions ...So how can i fix this? using System.Collections; using System.Collections.Generic; using UnityEngine;

public class galcontrols : MonoBehaviour { static Animator anim; public float speed = 10F; public float rotationSpeed = 100.0F;

 // Use this for initialization
 void Start () {
     anim = GetComponent<Animator>();
 }
 
 // Update is called once per frame
 void Update () {
     float translation = Input.GetAxis("Vertical") * speed;
     float rotation = Input.GetAxis("Horizontal") * rotationSpeed;
     translation *= Time.deltaTime;
     rotation *= Time.deltaTime;
     transform.Translate(0, 0, translation);
     transform.Rotate(0, rotation, 0);
     if(Input.GetButtonDown("Jump"))
     {
         anim.SetTrigger("isJumping");
     }
     if(translation!=0)
     {
         anim.SetBool("isRunning",true);
         anim.SetBool("idle", false);

     }
     else
     {
         anim.SetBool("isRunning", false);
         anim.SetBool("idle", true);
     }
 }

}