I've stumped myself on my login project and suggestions with the order of my code! it is a login project - function

Question

So I have the code written I think and it works but I am not sure how to order it properly so for example in my menu function when they enter 2 to end the program it will end completely as after I call this function I need to call the others but at the moment it while just run the next part of the code
print("----------------------Welcome User----------------------\n\n")
# this function is used for apperance in the program
def linebreak():
print("---------------------------------------------------------")
# Menu for user to choose what they would like to do
# this functuon gives the user a choice from the menu above if they want to log in it will break out of
# the loop and go onto the next block of code below
def menu():
while True:
print("-----------------------Main Menu------------------------\n")
print("To login enter 1:")
print("To end the program enter 2:")
print("")
try:
sUserSelection = int(input("What would you like to do? \n"))
# make a conditional statement to see if the user wants to start the login program or exit
if sUserSelection == 1:
break
elif sUserSelection == 2:
print("Ending program, Goodbye!")
break
except:
print("ERROR! Invalid choice please choose from the menu to continue or exit the program.\n")
menu()
menu()
# This is a function that will return two print statements one to tell the user that their login was successful
# And it will then print greet with that users inputted name
def welcome_user():
print("Login successful. ")
print("Welcome ")
# Create a function for the admin login
sAdmin = "admin"
sAdminPassWord = "aDmin002"
def admin_login():
print("Please login to the administrator account to create your new personal account: \n")
while True:
sUserInput = input("Please enter admin username: \n")
sUserInput = sUserInput.lower()
if sUserInput == sAdmin:
break
else:
print("Wrong username please try again! \n")
while True:
sPassInput = input("Please enter admin password: \n")
if sPassInput == sAdminPassWord:
print("Login Successful")
break
else:
print("Wrong password please try again! \n")
# this function allows the user to create a new account starting with the username and then
# it asks for the creation of a password
def new_account():
print("\nPlease create a new account.\n")
while True:
global sNewUser1
sNewUser1 = input("\nPlease enter a new username.\n"
"It should be at least 5 characters long\n"
"and not contain spaces or special characters: \n\n")
if len(sNewUser1) < 5:
print("Your username is too short. Please try again: ")
elif sNewUser1.count(" ") > 0:
print("Your username contains spaces. Please try again: ")
elif sNewUser1.isalnum() is False:
print("Your username contains a special character. "
"Please try again: ")
else:
# call another function
break
while True:
global sNewPass1
sNewPass1 = input("\n\nPlease enter a new password.\n"
"It should be at least 6 characters long\n"
"with at least one uppercase letter,\n"
"one lowercase letter, one special character"
"and one number: \n\n")
if len(sNewPass1) < 6:
print("\nYour password is too short. Please try again: ")
elif any(lower.islower() for lower in sNewPass1) is False:
print("\nYour password does not contain lowercase letters. "
"Please try again: ")
elif any(upper.isupper() for upper in sNewPass1) is False:
print("\nYour password does not contain uppercase letters. "
"Please try again: ")
elif any(digit.isdigit() for digit in sNewPass1) is False:
print("\nYour password does not contain a number. "
"Please try again: ")
elif any(not char.isalnum() for char in sNewPass1) is False:
print("\nYour password does not contain a special character. "
"Please try again: ")
elif sNewPass1.replace(" ", "") != sNewPass1:
print("\nYour password contains whitespaces. "
"Please try again: ")
else:
# call another function
break
def name_selection():
print("Account created sucessfully!")
global sName1
sName1 = input("Please enter your name:\n")
def user_login():
while True:
sUserLogin = input("Please enter your username:\n")
if sUserLogin == sNewUser1:
break
else:
print("Wrong username please try again:\n")
while True:
sUserPass = input("Please enter your password:\n")
if sUserPass == sNewPass1:
print("\nWelcome: ", sName1)
break
# # calls the menu function
menu()
# # calls the admin login function
admin_login()
# calls the function to create a new account
new_account()
# calls the name creation function after an account has been made
name_selection()
# calls the function to allow the user to login using there credentials
user_login()