I love reading and running actually, but when I am in this procrastination mode I can’t push myself to even start reading or go outside. I live in the city.
Therapist to start discussions about depression and porn addiction. As for engaging in new things, it's hard to say without knowing what city and I don't suggest saying which here, but maybe find the subreddit for your city and asking for ideas.
Depression doesn't mean 'sad' per se. Disengagement, lack of interest, etc. still fall into the window of depression. Overuse of addictive things (porn, drugs, alcohol) are also a sign.
Even if it is for a single session, I'd suggest talking to a professional therapist. If they're local, they even may have great ideas on things you may enjoy out of the house/connecting to other human beings in person. They may also suggest medications; I strongly suggest if you go the med route to see a psychiatrist over a primary care physician; psychiatrists simply know their stuff better/can monitor you more effectively.