Django user.authenticate всегда возвращает None

Models.py

class User(AbstractBaseUser):
    first_name = models.CharField(max_length=50)
    last_name = models.CharField(max_length=50)
    email = models.EmailField(_('email address'), unique=True)
    password = models.CharField(max_length=50)
    phone_number = models.CharField(max_length=100)
    last_login = models.DateTimeField(auto_now=True)
    is_confirmed = models.BooleanField(default=False)

    USERNAME_FIELD = 'email'
    REQUIRED_FIELDS = []
    objects = UserManager()

    def __str__(self):
        return self.email

Managers.py

class UserManager(BaseUserManager):
    """Define a model manager for User model with no username field."""

    use_in_migrations = True

    def _create_user(self, email, password, **extra_fields):
        """Create and save a User with the given email and password."""
        if not email:
            raise ValueError('The given email must be set')
        email = self.normalize_email(email)
        user = self.model(email=email, **extra_fields)
        user.set_password(password)
        user.save(using=self._db)
        return user

    def create_user(self, email, password=None, **extra_fields):
        """Create and save a regular User with the given email and password."""
        extra_fields.setdefault('is_staff', False)
        extra_fields.setdefault('is_superuser', False)
        return self._create_user(email, password, **extra_fields)

    def create_superuser(self, email, password, **extra_fields):
        """Create and save a SuperUser with the given email and password."""
        extra_fields.setdefault('is_staff', True)
        extra_fields.setdefault('is_superuser', True)

        if extra_fields.get('is_staff') is not True:
            raise ValueError('Superuser must have is_staff=True.')
        if extra_fields.get('is_superuser') is not True:
            raise ValueError('Superuser must have is_superuser=True.')

        return self._create_user(email, password, **extra_fields)

Settings.py

AUTH_USER_MODEL = 'users.User'

Мое приложение django называется 'users'.

По сути, я пытаюсь реализовать своих собственных пользователей, используя AbstractBaseUser, и я хочу аутентификацию с помощью email & password, перепробовал все, но так и не смог получить объект пользователя.

authenticate(email='abc@abc.com',password='12345') #always None
#even tried this
authenticate(username='abc@abc.com',password='12345') #always None

Не могу понять, чего мне не хватает. Любая помощь будет оценена по достоинству, спасибо заранее!

from django.db import models
from django.contrib.auth.models import AbstractUser, BaseUserManager


class UserManager(BaseUserManager):
    """Define a model manager for User model with no username field."""

    use_in_migrations = True

    def _create_user(self, email, password, **extra_fields):
        """Create and save a User with the given email and password."""
        if not email:
            raise ValueError('The given email must be set')
        email = self.normalize_email(email)
        user = self.model(email=email, **extra_fields)
        user.set_password(password)
        user.save(using=self._db)
        return user

    def create_user(self, email, password=None, **extra_fields):
        """Create and save a regular User with the given email and password."""
        extra_fields.setdefault('is_staff', False)
        extra_fields.setdefault('is_superuser', False)
        return self._create_user(email, password, **extra_fields)

    def create_superuser(self, email, password, **extra_fields):
        """Create and save a SuperUser with the given email and password."""
        extra_fields.setdefault('is_staff', True)
        extra_fields.setdefault('is_superuser', True)

        if extra_fields.get('is_staff') is not True:
            raise ValueError('Superuser must have is_staff=True.')
        if extra_fields.get('is_superuser') is not True:
            raise ValueError('Superuser must have is_superuser=True.')

        return self._create_user(email, password, **extra_fields)

class User(AbstractUser):
    email = models.EmailField('email address', unique=True,max_length=255)
    username=None
    # set username = None overriding default behaviour
    password = models.CharField(max_length=50)
    phone_number = models.CharField(max_length=100)
    last_login = models.DateTimeField(auto_now=True)
    is_confirmed = models.BooleanField(default=False)
    USERNAME_FIELD = 'email'
    REQUIRED_FIELDS = []
    objects = UserManager()

    def __str__(self):
        return self.email

    def save(self,*args,**kwargs):
        password = self.password
        if password is not None:
            self.set_password(password)
        return super(User,self).save(*args,**kwargs)