depression happens, and we all understand that, so thanks for putting it out there honestly, and daring to expose what we as macho men are taught to hold inside, and deal with silently
I am not a person that has serious depression. So I do not know what you are going through exactly, as others here are writing, but I do have regular episodes of melancholy, where I look at my life and say: how did I get here? If I had only gone down a different road, If I had made better decisions. Regrets. And then I remind myself, there are no do overs, make the best of it going forward.
Having said that, this is a hobby, and it's supposed to be fun. Sometimes I make trades, and don't pull cards before accepting the trade, or don't check the condition, and then I notice a messed up corner, or can't find a card. I get down on myself when I do that, and the hobby is less fun, and I think I should get out of the trading business. So, I know what you mean by the hobby contributing to your situation.
When that happens to me, I take a break for a couple of days. I take a deep breath. And I remember the fun days of the hobby. I remember that I had a good day last week, and part of what made it a good day was making a good trade, or having a good mail day.
Take care of yourself.
"Ability may get you to the top, but it takes character to keep you there." - John Wooden