再次运行函数时，它不会读取全局数组

I'm quite a beginner at coding and StockOverflow. This is my first post ever so please pardon if my post is not formatted correctly as I am only a junior in high school. On that note however, I had a question regarding my code below. Just a little background, this code is supposed to generate a list of fortunes and append each fortune, then once it has gone through the whole list, it regenerates a new one in a random order. (refer to code below) The problem occurs during I'm quite a beginner at coding and StockOverflo