My girls have always been early risers, they would sleep so well over night but be up and ready for the day by 5:30 and some days i just got on with it and accepted that is what they did and others OMG i could have thrown them out a window (obviously i didn't).
I have been there hun, and it's normal to sometimes get a little gruff & grumpy so please don't beat yourself up.

Can you organise when your DH gets home you get 30min to an hour in the bath ALONE, a nice glass of wine (or coffee etc) a big block of chocy, some candles... and NO child
Or an hour to duck out and grab a coffee alone?

DP works long hours and i run our business from home aswell as the kinder drops offs and all the other mummy things, we've recently started working it so i go out once every couple of weeks to bingo with my MIL and some Sunday mornings he has the kids (if he's not working) and i go for a coffee alone, even him watching the kids so i can shower alone is a big deal here