Correct answers keep giving me a strike

import random


words = [ 'apple', 'bananna', 'orange', 'pear', 'strawberry', 'coconut', 'melon' ]


while True:
    start = input("Press Enter/Return to start or enter q to Quit")
    if start.lower() == 'q':
        break
    secret_word = random.choice(words)
    bad_guesses = []
    good_guesses = []


    while len(bad_guesses) < 7 and len(good_guesses) != len(list(secret_word)):
        for letter in secret_word:
            if letter in good_guesses:
                print(letter, end='')
            else:
                print('_', end='')


        print('')
        print('Strikes {}/7'.format(len(bad_guesses)))
        print('')


        guess = input('Guess a letter: ').lower()


        if len(guess) != 1:
            print("You can only guess a single letter: ")
            continue

        elif guess in bad_guesses or guess in good_guesses:
            print("You've already guessed that letter!")
            continue

        elif not guess.isalpha():
            print("You can only guess letters!! ")
            continue

        if guess in secret_word:
            good_guesses.append(guess)

            # The if-block below wasn't indented. So whenever the length of good_guesses wasn't the same as 
            # the length of secret_word, the else-block beneath it executed. 
            if len(good_guesses) == len(list(secret_word)):
                print("Yayyyyy!!!, You got it!!...The word was {} ".format(secret_word))
                break
        # This block executed every len(good_guesses) != len(secret_word)
        else:
            bad_guesses.append(guess)

    else:
        print("You didnt get it, The secret word was {}".format(secret_word))