number guessing game help / python

import random

min_number = 1
max_number = 20

random_number = random.randint(min_number, max_number)
guesses = []

def start_game():
    print("""
    Welcome to Sonny's Spectacular Number Guessing Game!!!
    How to play: Guess a number between 1 and 20. Don't worry if you get the number incorrect, Sonny will be there to help you along the way. Good Luck!
""")

    while guesses != 0:
        while True:
            try:
            guess = int(input("Choose a number between 1 and 20"))
            if guess < max_number or guess > min_number:
        except ValueError:
            print("PLease choose a number inside the range of 1 through 20")
            continue
        guesses +=1    
        if guess == random_number:
            print("Sonny thinks you've found the right number!! It took you {} guesses to get the right number".format(guesses))
            break
        elif guess < random_number:
            print("Sonny thinks your number is a bit cold, try something higher!")
            continue 
        elif guess > random_number:
            print("Sonny thinks your number is a bit hot, try something lower!")
            continue 
    return guesses

    while True:
    print("Sonny wants to know if you want to play again? Y/N")
    restart = input("")
    if restart.lower() == "y":
        continue

    elif restart.lower() =="n"
        print("Thanks again for playing")
        break


start_game()