Not sure how to help you with this, since that will change with what you want to archive in the loop. But maybe writing it in pseudo code might help:

For each letter in the word for letter, position in enumerate(word): You want to check if your guess is the letter if letter == guess: If it is you want to add the letter to your display , exactly on the position it is in the original word display[position] = letter

Does that kind of thinking help?