Django login/register issue - python-3.x

Question

I am new to Django and am building a database-driven website using PyCharm.
I am having an issue with users registering/logging in. What is happening is, when a user registers, I check the "Database" tab to the right, and the information will be passed into a table named "SavBlock_user", which will have the users name, password, etc.. Then, when I try to log in, it won't allow me to login due to incorrect username/password. However, if I try to login using a username/password from a different table named "auth_user" (like username: admin / password: admin), then I can successfully login. I'm not sure how to fix this.
Ideally, what I would like to do is completely remove the "SavBlock_user" table and strictly use "auth_user" for all of my users, but I'm not sure how to do this. I may have created a 'custom' user model back when I was learning the system, but I can't remember.
My files:
Project\register\forms.py
from django import forms
from SavBlock.models import * # <--- Contains User
''' Form for users to register '''
class RegisterForm(forms.ModelForm):
email = forms.EmailField(
initial='myemail#savagez.com'
)
uso_validate = forms.BooleanField(
label='Are you a PSMC member? (Chief, Uso, Anak)',
initial=False
)
class Meta:
model = User
widgets = {
'password': forms.PasswordInput(),
}
fields = '__all__'
Project\register\views.py
from django.http import request
from django.shortcuts import render, redirect
from .forms import RegisterForm
# Create your views here.
def register(response):
if response.method == "POST":
form = RegisterForm(response.POST or None)
if form.is_valid():
form.save()
return redirect('/dashboard/')
else:
form = RegisterForm()
return render(response, 'register/register.html', {'form': form})
Project\SavBlock\models.py
from django.db import models
class User(models.Model):
username = models.CharField("user name", max_length=50, default='')
email = models.EmailField("email address", unique=True, default='DEFAULT VALUE')
first_name = models.CharField("first name", max_length=50)
last_name = models.CharField("last name", max_length=50)
password = models.CharField("password", unique=True, max_length=50, default='')
rank = {
0: 'Supporter',
1: 'Anak',
2: 'Uso',
3: 'Chief'
}
#TODO: FIT __INIT__
'''
def __init__(self, first_name, last_name, *args, **kwargs):
super().__init__(*args, **kwargs)
self.first_name = first_name.title()
self.last_name = last_name.title()
'''
# Magic method returns string of self
def __str__(self):
return f"User {self.first_name} {self.last_name} rank {self.rank}".strip()
#property
def get_full_name(self):
return f"{self.first_name} {self.last_name}".strip()
class Anak(User):
def __init__(self, first_name, last_name, tribe):
super().__init__(first_name, last_name)
self.tribe = tribe.title()
self.rank = User.rank[1]
class Uso(User):
def __init__(self, first_name, last_name, tribe):
super().__init__(first_name, last_name)
self.tribe = tribe.title()
self.rank = User.rank[2]
----EDIT----
I fixed the different user tables and basically reset the migrations. Now, all users are showing up under a single user table SavBlock_user. However, the login issue is still there.
Admin was created using the terminal manage.py createsuperuser command. I am able to login on the webpage using this account.
testing123 was created using the registration form. It pulls up a message that says "Please enter a correct username and password".
Anyone have any ideas?