Thanks, glad you enjoyed it!
I did not use a dialogue plugin, but boy do I wish I had. I checked out Dialogic, which seems very extensible and powerful, but I couldn't get it to do what I wanted it to immediately so I say "screw it I'll make my own system". And while I did make my own system, it's very rudimentary and entering new dialogue was an absolute pain. But it works, and that's what's important.
And yes, I'm doing fine. I know the game is a bit dark, depressing even. But I think making things about your negative feelings can help you process them. This game has been getting a lot a praise so far, and I feel a little flutter in my chest every time someone says "wow this is great!" or, like you, says that they had an emotional response to it. And I have to reflect on that, realize that that's my desire for admiration, and I have to not let it go to my head. Let's just say, if I hadn't made this game and instead made a different game, I probably wouldn't be processing this praise in the same way. Making this game has forced me to shift my way of thinking about making things, hopefully for the better.