Yup, I did and it worked! It's certainly worth a try.
I got myself out of a depression by taking the amino acid l-tryptophan. Really recommend it!
I got my energy back, sleep better, better mood, less anxiety.
Have a read about it online
I recommend the pure powdered stuff that's been tested for safety. iHerb has it.

I tried all sorts of vitamins etc too, and they help very gently, but I barely notice it. Tryptophan I notice the effects within 10 minutes! I've been taking it for a few months and my symptoms got progressively better. I'd say I was mostly cured of depression within a month and got a big part of my energy back within a few days (that'll be the niacin our bodies make out of tryptophan, an essential player in energy).

You can't take this in combination with antidepressants though. But it's natural and doesn't have all of the terrible issues antidepressants bring with them, like increased suicide risk and getting fat :/

This might not work for everyone, but if you have a trauma history it probably will. (constant fight/flight mode caused by trauma depletes tryptophan storages by using it all up to make cortisol, not leaving enough for the body to make melatonin, niacin, serotonin etc.) I therefore also do things that will hopefully help lower cortisol production. And take an essential amino mix regularly as well which does me good.

Good luck!