Frustration!

It's Monday of our second week of kindergarten and I'm FRUSTRATED! DS has a horrible attitutde. He acts tired and mopey whenever we do something he doesn't really want to do. As soon as he has a break and can do what he wants, he seems to have plenty of energy. I think I'm doing interesting, age-appropriate things with plenty of breaks and short periods of time... Today we did some phonics (only about 10-15 minutes worth), some writing (just his name and phone number), story time, math, learned about Africa a little, did 5 minutes of science and then acted out the different jobs in a grocery store. I feel like I'm pulling out teeth! What am I doing wrong? He wanted to skip school or at least be done early. I reminded him that most other kids his age get shipped off to school in the morning and aren't done with school until the afternoon. They don't get to play with their siblings or their own toys. Maybe we just need more time to get into the rhythm of it all. Ugh.