I have no experience of living alone yet and the first should begin after my graduation next year. Either did my sisters since one is living with her friends, the other is still living in the school as a full-time teacher.
Though don't have ideas about living alone, it occurs to my mind that I could stimulate it while living in the group. Here are my thoughts on basic elements of a happy individual living.
#1 backup for emergency
The same as my current situation, there should be materials preparing for accidents, including water, electricity, food, medicine, and self-protect 'weapons'.
#2 convenient healthy cooking
I'm not a fan of cooking and hardly enter into the kitchen. However, I successfully trained myself in two recipes that could be cooked in a quick but healthy way. Also, the ingredients are easy for new combinations.
#3 good sleeping
Living alone is more likely to feel unsupportive, how to end a day in the sweet dark but not fear or regret? An orange nightlight and scheduled sleeping routine are useful.
#4 more space for creating
Bed and wardrobe are the two kinds of furniture that I think give more space back to others related to creating instead of storing, such as a desk for handworks, a wall for paintings, etc.