Codeigniter 3 Multi User database - codeigniter

Question

I just finished creating website for my school projects with CI 3. I've also made a session and also all the menu for admin and user. But, when i tried to register a new user account and then login with it, the page showing the exact data like user 1. How can i make a different crud database to every different user (with the same views of page), so every user can do CRUD on their data.
This is my authh controller code :
<?php
defined('BASEPATH') OR exit('No direct script access allowed');
class Authh extends CI_Controller{
public function __construct(){
parent::__construct();
$this->load->library('form_validation');
}
public function index(){
$this->form_validation->set_rules('email','Email', 'trim|required|valid_email');
$this->form_validation->set_rules('password','Password', 'trim|required');
if($this->form_validation->run() == false){
$data['title']= 'LCA Master Login';
$this->load->view('auth/header2',$data);
$this->load->view('authh');
$this->load->view('auth/footer2');
} else{
$this->_login();
}
}
private function _login()
{
$email = $this->input->post('email');
$password = $this->input->post('password');
$user = $this->db->get_where('user',['email' => $email])->row_array();
//jika usernya ada
if($user) {
// jika usernya aktif
if($user['is_active']==1){
//cek password
if(password_verify($password, $user['password'])){
$data= [
'email' => $user['email'],
'role_id' => $user['role_id']
];
$this->session->set_userdata($data);
if($user['role_id']== 1){
redirect('admin');
} else {
redirect('user');}
}else {
$this->session->set_flashdata('message','<div class="alert alert-danger" role="alert">Wrong password!</div>');
redirect('authh');
}
} else{
$this->session->set_flashdata('message','<div class="alert alert-danger" role="alert">Email has not been activated!</div>');
redirect('authh');
}
} else {
$this->session->set_flashdata('message', '<div class="alert alert-danger" role="alert">Email is not registered!</div>');
redirect('authh');
}
}
public function registration(){
$this->form_validation->set_rules('name', 'Name', 'required|trim');
$this->form_validation->set_rules('email', 'Email','required|trim|valid_email|is_unique[user.email]',[
'is_unique'=> 'This Email is already Registered!'
]);
$this->form_validation->set_rules('password1', 'Password', 'required|trim|min_length[3]|matches[password2]', [
'matches' => 'Password dont match!',
'min_length' => 'Password too short!'
]);
$this->form_validation->set_rules('password2', 'Password', 'required|trim|matches[password1]');
if ($this->form_validation->run() == false){
$data['title']= 'LCA Master Registration';
$this->load->view('auth/header2',$data);
$this->load->view('register');
$this->load->view('auth/footer2');
} else{
$data = [
'name' => htmlspecialchars($this->input->post('name', true)),
'email' => htmlspecialchars($this->input->post('email', true)),
'image' => 'default.jpg',
'password' => password_hash($this->input->post('password1'), PASSWORD_DEFAULT),
'role_id' => 2,
'is_active' =>1,
'date_created'=>time()
];
$this->db->insert('user', $data);
$this->session->set_flashdata('message','<div class="alert alert-info" role="alert">
Your Account Has Been Created! Please Login </div>');
redirect ('authh');
}
}
public function logoutt()
{
$this->session->unset_userdata('email');
$this->session->unset_userdata('role_id');
$this->session->set_flashdata('message','<div class="alert alert-success"
role="alert">You have been logged out!</div>');
redirect('authh');
}
}