I have had depression for pretty much as long as I can remember anything at all and this feels relatable. I can't say anything smart or helpful though.

I think going alone for a walk is a really bad idea/advice. I've always felt way worse after doing that because there is nothing to distract it so you just chew yourself up or at least that's how I do it.

Just some minor pushback. When walking, ‘look at chimneys’. There is something to be said for enforcing an uplifted posture, plus engaging with the light. Honestly, it makes a difference!