I think I committed cocsa

I'm freaking out about this, I need help. I'm genuinely going to cry. When I was a kid, about 10 or so I had a friend who was the same age. We'd do something that I always thought was just a game where I'd chase him around and tell him to kiss me. I had no intentions, but I feel horrible about it. One day in class I leaned over and gave him a peck on the forehead, and I just randomly remembered doing it now. I feel fucking sick. I feel horrible. I've been reading posts and everyone is saying any unwanted touch is SA, including a kiss on the cheek/forehead. I don't know what to fucking do.