The main difference between flour and self-rising flour is that self-rising flour already has leavening agents like baking powder and salt mixed in. This means that when you use self-rising flour, you don't need to add extra baking powder or salt to your recipe. It's like having a special shortcut in your baking repertoire!
Think of it like making your favorite coffee drink. If you're using a pre-mixed coffee blend, you don't need to add extra sugar or creamer because it's already included. Similarly, self-rising flour has the extra ingredients already mixed in, so you can skip adding them to your recipe.