From reading your post and the file names, it seems you have imported multiple projects into one project. Duplicating entire folders will work, but you need to be sure you have opened up the correct final file and are changing the text in the correct precompositon.
Check the “Mini Flow Chart” located in your Comp window, it’s the first button after the search box. From here you can click the precomp that feeds the final comp your text.
Also the script I suggested is part a “Name Your Own Price”
You can pay anything you want, the amount displayed in the cart is only a suggested amount” plan. You can change the price to “0” if you want.
Johnny Cuevas, Editor