First, update daily necessities regularly. Some people may ask, is it important? Of course, this is very important. If you live alone, don't change the old things and clean them regularly, then the chances of buying new things will be less and less. What will this lead to? You will live in a house full of rubbish, which hasn't been new for a long time. The same life will not improve the quality of your life alone. You need to constantly make some changes to your house and clean up old things, such as a new potted plant, a new mural and a new handicraft. Although small, you seem to be decorating the house, but you are actually changing your mood, because living in a house with old things has not changed for a long time.
Secondly, you need to satisfy your own appetite. More and more solitary people spend part of their time outside or order takeout for convenience, and rarely have the opportunity to cook by themselves. In fact, if you want to live a completely solitary life, it is essential to cook by yourself. The benefits of cooking by yourself are numerous. From then on, you will have less chance to eat unhealthy food such as take-away. How wonderful it is that you cook by yourself and enjoy the fruits of your labor. And it is a rare opportunity to exercise yourself. You will find the pleasure of cooking by yourself. In this process, you will unconsciously learn all kinds of delicious food and gain a skill yourself. Why not?
Besides, you need to do a general cleaning of your residence regularly. Maybe you don't think there will be so much garbage when you live alone, and you are cleaning at ordinary times, so cleaning is not unnecessary. But in fact, there are a lot of dust and mites in the corner that you can't see, and it will only increase with time. If you get into the habit of cleaning regularly, your residence will be more than "clean". And the more dust accumulates, it will be very bad for your health. Regular cleaning will also reduce the incidence of lung diseases.
Finally, I think a good habit of living alone is a healthy sleep habit. Because people who live alone are free most of the time, and because no one restricts their daily life, their daily life will become extremely irregular. Going to bed late and getting up late will do great harm to your health. Self-discipline means freedom. If you can keep a good daily routine when you live alone, it is very valuable and customary.