Budding bully

I got in trouble at day care again. Today when I was playing with my friends Iris and Vera, I guess I grabbed them by the back of their shirts by their necks and then I kind of pushed them over. I didn't mean to push them over or hurt them. I thought we were playing a game and sometimes I grab things or people for balance. My teachers put me in a special chair at school away from everyone else. I didn't like that at all. I'm going to try to not be so rough tomorrow. :(