[Malo]

Didn't read the thread. But here's one thing I'd recommend - sometimes there's a tangible reason for feeling down, even for very lengthy periods of time. "A thorn in your side" that you may be in denial about, even for years. Stuff like a shitty relationship, not being true to yourself for whatever reason, a shitty job that you hate but too scared to leave cause it pays well, feeling guilty about what truly makes you happy so you end up not doing it, and so on. Be brutally honest with yourself about these things.