Answer:
If I woke up and was the only human left in the world, the first thing that I would do would be to gather supplies in my house, such as extra batteries, nonperishable food, flashlights, rope, etc. You never know when you are going to need them, especially if the electricity and has gone out. The next thing I would do is ride my bike or drive around town, going to the store and taking more food, bottles of water, and survival tools. I am on my own after all. The last thing I would do would be to grab things to do, such as books from the library or art supplies or puzzle books. There is no way of knowing how long you would be alone, so having things to do and keep your mind busy is the most logical thing to do so you won't literally go insane from loneliness.
Step-by-step explanation:
This is just what I would do, feel free to change it up to suit your writing style and needs.