If you want to do it, you must first learn the skills of doing it, including business management. You said that you can't eat too much near your home. This requires you to investigate how much these stores make money, how much they break even, and how much they lose money, which will be of direct help to you. Besides what to do, at present, none of your own conditions meet the requirements for opening a shop, including management, technology, capital, etc. In fact, if you open a shop, you may not make money every day, but you just mix food and drink, and some of them are rich, which is far from your current situation. If you want to do it, study first, get in touch with a catering industry casually, and learn to calculate and control costs, which is very close to the success of opening a store! Personal understanding of the low cost and high profit is about doing more now. Breakfast includes Baiji steamed buns, bean curd and the like, other pasta products have considerable profits, and dumplings are chaotic. If you want to learn quickly, you can send takeout food first, learn things, understand consumer demand, and make money to subsidize your family. Again, don't invest blindly, your peers have no interests, so learn first!

In fact, in order to achieve low cost and high income, I suggest you do a mobile catering industry, sell breakfast near universities, middle schools, or local factories, provided that you have a business license and a health certificate, spend some money on making special breakfast, and you will naturally make money! One of my relatives is a special snack variety I contacted, and then earned it within one year ~