How can I get two variables to hold the amount of higher than and lower than guesses?

Hello everyone! I am creating a game in which the computer selects a random number 1-10 Then the user guesses the number until they get it right. The trouble I am having is that when the users enter the wrong answer the variables high or low should be updated, but it just continues looping until the user does enter the right answer. Which causes high and low to always be at 0. Any ideas? I know there is probably something wrong with the way I am looping? Any pushes in the right direction would be great!

# module to generate the random number
import random
def randomNum():
    selection = random.randint(0,9)
    return selection

# get the users choices
def userGuess():
    correct = True
    while correct:
        try:
            userPick = int(input('Please enter a guess 1-10: '))
            if userPick < 1 or userPick >10:
                raise ValueError
        except ValueError:
            print('Please only enter a valid number 1 - 10')
            continue
        return userPick

# define main so we can play the game
def main():
    correctNum = randomNum()
    guess = userGuess()
    high = 0 
    low = 0
    if guess != correctNum:
            print('uhoh try again!')
            guess=userGuess()
    elif guess > correctNum:
            print('That guess is too high!')
            high = high + 1
    elif guess < correctNum:
            print('That guess is too low')
            low = low + 1
    else:
            print('You win!')
    # the outcome of the game:
    print('Guesses too high:', high)
    print('Guesses too low:',low)
    print('Thank you for playing!')
main()