I failed the mommy challenge of the day.

Somebody explain to me why I have the worst luck in the world! Today I was on the way home from the Dr. with the kids (and may I add that I did take both kids with me to the Dr, bad idea in the 1st place!). I was less than a mile away from home and Emerson tells me that she dropped her glasses. A couple minutes later we pull into our driveway, Emerson unbuckles her seat belt and gets out of her booster. At the same time I'm opening up her door and see her stepping on the glasses that she just dropped. Of course I start yelling but it was too late. She bent them and when I tried to bend the arms back into the right spot one broke off. Yes, broke off! We've had them for how many days and they're already broken? Aaarrrrgggghhhh!!!!!!!! I am so irritated. I know she didn't mean to do it, but didn't she remember she had just dropped them? I guess considering her age it's not a big surprise that she wouldn't think "hey, I just dropped my glasses and I might step on them, I better look before I get down." Anyway, I got upset with her then she got upset and now I feel like a horrible mommy for being mad that she had an accident. I completely lost it and failed the mommy challenge for today. I feel like I should go ahead and save money up for the day Emerson has to go to therapy because her mother yelled at her for breaking her glasses. I apologized for over reacting and hopefully I haven't scarred her too much for one day.
But honestly I'm still thinking, "great, now we're going to have to fork out another $100 to get the glasses fixed" because we have to pay 50% of the cost of the frames and lenses for repairs. Oh why didn't I just immediately stop the car and look for the glasses? I mean, I'm the adult, the supposed responsible one, right?!
*takes a deep breath*
It will all be okay.
*takes another deep breath*
Okay, sorry for the rant but it's been quite a frustrating day.