I promised you a page explaining informal (argumentative) fallacies. This is a pretty good page, especially if you have an adblocker. (The advertisements are a bit distracting, but the explanations of the fallacies are pretty good, especially if you clink through the list of links on the names of the various fallacies, listed on the right side of the page.)
You don’t necessarily need to memorize all the names of the fallacies. Think of them as common “moves” that people make, and remember that it’s more important to remember the “move” than to know the name of each.