There are a number of different things that you could do this evening.
The newspaper you read the day after your first encounter with the Black Cockroach mentioned how Mr. Watson, a notorious property developer with alleged links to a powerful crime syndicate, was acquitted of several charges yesterday when one of the key witnesses failed to show up in court. You could try to see if you can find out more about Mr. Watson.
Not far from your apartment there is a darts bar, where you could spend a few hours practicing your aim.
However, if you are worried about the progress on your article, you could also stay home and spend some time working on it.
Alternatively, you could join one of the many martial arts gyms in the city, and try to improve your fighting skills.
This could also be a good occasion to buy some weapons or gear. These could come in handy in a future fight, as your superpowers might not be enough to get you out of every situation.
Given that you are injured, it might also be a good idea to go to a hospital and get your injuries treated. However, your health insurance is rather basic, so this could prove to be expensive.