This is one of those times that I feel like one of these:

is just completely inadequate.
The water heater.
The pipe.
The sucky-as-all-get-out training day.
Girlie, it's been a rough one.
If it makes you feel any better, that seems to be going around for lots of people as of late. Including yours truly.
I will say this, though, I agree with KittyKat. I have lots of days where I just want to give the world (but not the World) a big ol' middle finger. But as of late, I've tried something new. I've tried "forcing" the happiness despite the anger, frustration, depression, etc. and you know what? I'm only "forcing" it for about 5 minutes. Then I fall into a state of calm. Not always happiness, per se, but no more general anger or sadness with the world.
As I found out in quite sharp relief these past couple of months, things have a way of working themselves out, even if it's not the way you thought they would or wanted them to.
I should get that tattooed somewhere.
Also, my therapist and I had a very interesting conversation about treating our physical gripes instead of first exploring what might be causing them.
For example, your body, quite literally gave out...but why? I'm going with total emotional exhaustion. Even though you know you need to train, your body was saying, "NO, woman, I need to SLEEP." Honey you've been dealing with so much!
Don't be hard on yourself. You don't deserve it.
And just focus on the training you can do. And then see how you do at the event. Maybe you can't keep the pace. Maybe they come pick you up and you're 'disqualified'. I've been stressing about those things myself. And then I thought, "Oh why I am I DOING this to myself???" If I make it, AWESOME. If not,
I know that I did the best I could. Granted, that's not the
goal but you know what? I can't torture myself about it. And I don't think you should either.
Crissy, we're such kindred spirits, you and I. Now if only we weren't 2 hours apart. My firm is probably hiring for some position you could fill. There's another apartment at the complex we're (hopefully) moving into. Come up to MA!!!
I'd come down there but BF said he will NOT live within proximity of NYC, even CT. He's emotionally scarred. Last time we visited the city for the weekend, some random dude on the street called him a white devil and then offered him a sip from his bottle of JD.
