I too have used Fiverr back in the day when I got started, sadly I have to agree on most points you have made. However, I am always extremely cautious to judge or dismiss something as ineffective. There’s always the chance that it didn’t work for the both of us and thousands of other people. But there’s always the chance that it did work, and perhaps still does for thousands more.
Have a yard sale to sell things you no longer need. Choose a day or a couple of days to have your yard sale. Advertise it in your local paper and online, such as on social media and classified websites. Then, on the day of the sale, arrange the items on tables, blankets, shelves, or in other ways in front of your home. You can arrange the items into groups by price, or price them individually.