Here are the general instructions:

$1.$ Start with a list of letters $($upper and lower$),$ a list of numbers, and a list of symbols

$2.$ Ask the user for how many characters to make the password

$3.$ Start with an empty password string

$4.$ Repeat the following steps as many times as needed until the password is long enough

a$.$ Randomly select a character from one of the lists from step #$1$

b$.$ Add that random character to the password string

$5.$ Print the password $($matching the requested length$)$

$6.$ Ask the user if they want to generate another or quit