The main purpose of classifying the items is, after all, to make some kind of financial judgment. For example, you can divide'food expenses' and'date expenses' and compare which items were consumed more. Or, you can set a budget for each item and control usage.
When you first start, you may not have much trouble deciding how to judge. In that case, roughly divide it into'feeling'. And use it for a few months or so. Then, problems are found, such as being classified too finely or too crowded to provide the desired information. At that time, you can create a new section and use the experience in between to set the category that suits you.