Angry dad

So this week my family’s schedules are all weird. My stepmom is in Colorado for work and I’ve been dog/house sitting for the last two weeks(haven’t been home, staying at the friends house that im sitting for) my parents know I have a busy schedule because I’m also covering for that friend at work, working my off days as well as normal days, plus class which is an hour away. I just feel like I’m being pulled every direction and I’m beginning to feel overwhelmed. My dad texted me and asked if I went to let our dog out at home. Which I did forget I had to do. My stepmom is all about schedules so she had emailed us all schedules which, they know I don’t ever really check my email unless its my school email, if they need me to do something it’s better if they text or call. But that didn’t happen so yes I forgot I needed to and this is what my dad said...

Am I wrong. I know I forgot to drive and let our dog out but our dog HAS in fact gone longer without being checked on. He’s a good dog, he doesn’t have accidents, when I got the the house he was happily asleep on his little couch and he wouldn’t even go to the bathroom when I walked around the yard for him for a half hour..

my dad said those things and I lost it. I started crying, like I know that I messed up but lately it’s seemed like everything i do upsets them. To me he’s acting like I don’t also have things I need to get done...