I am a beginner who wrote this simple hangman game in C for fun and to practice programming. I am looking for advice on optimizing this code and making it adhere to best practices. Are there too many variables, conditionals, and loops? Thank you!

I am a beginner who wrote this simple Hangman game in C for fun and to practice programming. I am looking for advice on optimizing this code and making it adhere to best practices. Are there too many variables, conditionals, and loops?

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <stdbool.h>

int main(void)
{
    //get a word
    char words[12][10] = {"depend", "rich", "twig", "godly", "fang", "increase", "breakable", "stitch", "pumped", "pine", "shrill", "cable"};
    srand(time(NULL));
    int r = rand() % 10;
    char* word = words[r];

    int length = strlen(word);
    int maxIncorrect = 5;
    char correct[26] = {'\0'};
    char incorrect[26] = {'\0'};
    int amountCorrect = 0;
    int amountIncorrect = 0;

    //repeat until maxIncorrect wrong guesses
    while (amountIncorrect < maxIncorrect)
    {
        char guess = '\0';
        bool inWord = false;
        bool allCorrect = true;
        printf("\n________________________________________\n\n");

        //print blanks and correcly guessed letters
        for (int i = 0; i < length; i++)
        {
            inWord = false;
            for (int j = 0; j < 26; j++)
            {
                if (word[i] == correct[j])
                {
                    inWord = true;
                }
            }
            if (inWord)
                {
                    printf("%c ", word[i]);
                }
            else
            {
                printf("_ ");
                allCorrect = false;
            }
        }

        //stop if all letters have been correctly guessed
        if (allCorrect)
        {
            printf("\n\nCorrect!\n");
            return 0;
        }

        //print incorrect guesses
        printf("\n\nIncorrect guesses: ");
        for (int i = 0; i < amountIncorrect; i++)
            {
                printf("%c", incorrect[i]);
            }

        printf("\n");

        inWord = false;
        bool valid = true;
        printf("\n%i incorrect guesses remaining\n", maxIncorrect - amountIncorrect);
        printf("Enter a single lowercase letter: ");

        //get user's guess and check if it is valid (a lowercase letter that has not been guessed before)
        scanf("%c%*c", &guess);
        for (int i = 0; i < amountCorrect; i++)
        {
            if (guess == correct[i])
            {
                valid = false;
            }
        }
        for (int i = 0; i < amountIncorrect; i++)
        {
            if (guess == incorrect[i])
            {
                valid = false;
            }
        }
        if (guess < 97 || guess > 122)
        {
            valid = false;
        }

        //go back to top of loop guess is invalid
        if (!valid)
        {
            printf("\nInvalid\n");
        }

        //check if guess is part of the word or not
        else
        {
            for (int i = 0; i < length; i++)
            {
                if (guess ==  word[i])
                {
                    inWord = true;
                }
            }
            if (inWord == true)
            {
                correct[amountCorrect] = guess;
                amountCorrect++;
            }
            else
            {
                incorrect[amountIncorrect] = guess;
                amountIncorrect++;
            }
        }
    }

    printf("\nThe word was %s\n", word);
    return 0;
}

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <stdbool.h>

int main(void)
{
    //get a word
    char words[12][10] = {"depend", "rich", "twig", "godly", "fang", "increase", "breakable", "stitch", "pumped", "pine", "shrill", "cable"};
    srand(time(NULL));
    int r = rand() % 12;
    char* word = words[r];

    int length = strlen(word);
    int maxIncorrect = 5;
    char correct[26] = {'\0'};
    char incorrect[26] = {'\0'};
    int amountCorrect = 0;
    int amountIncorrect = 0;

    //repeat until maxIncorrect wrong guesses
    while (amountIncorrect < maxIncorrect)
    {
        char guess = '\0';
        bool inWord = false;
        bool allCorrect = true;
        printf("\n________________________________________\n\n");

        //print blanks and correcly guessed letters
        for (int i = 0; i < length; i++)
        {
            inWord = false;
            for (int j = 0; j < 26; j++)
            {
                if (word[i] == correct[j])
                {
                    inWord = true;
                }
            }
            if (inWord)
                {
                    printf("%c ", word[i]);
                }
            else
            {
                printf("_ ");
                allCorrect = false;
            }
        }

        //stop if all letters have been correctly guessed
        if (allCorrect)
        {
            printf("\n\nCorrect!\n");
            return 0;
        }

        //print incorrect guesses
        printf("\n\nIncorrect guesses: ");
        for (int i = 0; i < amountIncorrect; i++)
            {
                printf("%c", incorrect[i]);
            }

        printf("\n");

        inWord = false;
        bool valid = true;
        printf("\n%i incorrect guesses remaining\n", maxIncorrect - amountIncorrect);
        printf("Enter a single lowercase letter: ");

        //get user's guess and check if it is valid (a lowercase letter that has not been guessed before)
        scanf("%c%*c", &guess);
        for (int i = 0; i < amountCorrect; i++)
        {
            if (guess == correct[i])
            {
                valid = false;
            }
        }
        for (int i = 0; i < amountIncorrect; i++)
        {
            if (guess == incorrect[i])
            {
                valid = false;
            }
        }
        if (guess < 97 || guess > 122)
        {
            valid = false;
        }

        //go back to top of loop guess is invalid
        if (!valid)
        {
            printf("\nInvalid\n");
        }

        //check if guess is part of the word or not
        else
        {
            for (int i = 0; i < length; i++)
            {
                if (guess ==  word[i])
                {
                    inWord = true;
                }
            }
            if (inWord == true)
            {
                correct[amountCorrect] = guess;
                amountCorrect++;
            }
            else
            {
                incorrect[amountIncorrect] = guess;
                amountIncorrect++;
            }
        }
    }

    printf("\nThe word was %s\n", word);
    return 0;
}