Get a dog.

When you get a dog, the dog will mark its territory so other dogs do not invade territory unless really bad dogs.
To make sure your dog do not poop in the wrong place, you can walk your dog, take it out to poo in isolated place.
You can youtube dog training to teach dog to poo in the toilet as I see pet owners train their pet to poo into si-hang.

Obviously pet owner has responsibilities.

Maybe start off with a plant, you remember to water it everyday.

Eat more vegetables, fruits and nuts.
Stop eating process, junk, fast food.

If time permits, brisk walk for 40min per day.
If time permits, watch some nice TV programs.
Change some of your habits into positive activity.

In the end, all that matters are people who love you.

Break from routine and habits is also opportunity to feed new data into your brain.
Chinese brains automatically compute 1+1 = ...
So unless you feed new data / info.... the depression will continue to conclude with existing data.

Glad you had a good laugh with "Get a dog"