Good advice. First thing is to move around, even if you don't know where to go. Walk, run, exercise. Sometimes it's hard to define a goal when things are dark, but simply by moving you change your brain chemistry. And you never know what you'll run into. Then, most especially, stay away from negative people. And, of course, get help, from responsible professionals who care about you.
Seems to me you have a good approach. And I think you did a service by sharing with others. Good luck.